diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index 766150e6..33fc2d51 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -81,6 +81,7 @@
     <Compile Include="Entis\ErisaMatrix.cs" />
     <Compile Include="Hexenhaus\ArcARCC.cs" />
     <Compile Include="Hexenhaus\ArcODIO.cs" />
+    <Compile Include="Emote\ArcPSB.cs" />
     <Compile Include="Hexenhaus\ArcWAG.cs" />
     <Compile Include="Ikura\ImageYGP.cs" />
     <Compile Include="ImageLZ.cs" />
diff --git a/ArcFormats/Emote/ArcPSB.cs b/ArcFormats/Emote/ArcPSB.cs
new file mode 100644
index 00000000..ad206d8b
--- /dev/null
+++ b/ArcFormats/Emote/ArcPSB.cs
@@ -0,0 +1,622 @@
+//! \file       ArcPSB.cs
+//! \date       Thu Mar 24 01:40:57 2016
+//! \brief      E-mote engine image container.
+//
+// Copyright (C) 2016 by morkt
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Text;
+using System.Windows.Media;
+using GameRes.Utility;
+
+namespace GameRes.Formats.Emote
+{
+    internal class TexEntry : Entry
+    {
+        public string   TexType;
+        public int      Width;
+        public int      Height;
+        public int      TruncatedWidth;
+        public int      TruncatedHeight;
+    }
+
+    [Serializable]
+    public class PsbScheme : ResourceScheme
+    {
+        public uint[] KnownKeys;
+    }
+
+    [Export(typeof(ArchiveFormat))]
+    public class PsbOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "PSB/EMOTE"; } }
+        public override string Description { get { return "E-mote engine texture container"; } }
+        public override uint     Signature { get { return 0x425350; } } // 'PSB'
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool     CanCreate { get { return false; } }
+
+        static uint[] KnownKeys = new uint[] { 970396437u };
+
+        public PsbOpener ()
+        {
+            Extensions = new string[] { "psb" };
+        }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            using (var input = file.CreateStream())
+            using (var reader = new PsbReader (input))
+            {
+                foreach (var key in KnownKeys)
+                {
+                    if (reader.Parse (key))
+                    {
+                        var dir = reader.GetTextures();
+                        if (null == dir || 0 == dir.Count)
+                            return null;
+                        else
+                            return new ArcFile (file, this, dir);
+                    }
+                    if (!reader.IsEncrypted)
+                        break;
+                }
+                return null;
+            }
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            var tex = entry as TexEntry;
+            if (null == tex)
+                return base.OpenEntry (arc, entry);
+
+            byte[] header;
+            using (var mem = new MemoryStream())
+            using (var writer = new BinaryWriter (mem))
+            {
+                writer.Write ((uint)0x81C3D2D1); // 'PSB' ^ 0x81818181
+                writer.Write ((int)0);
+                writer.Write (tex.Width);
+                writer.Write (tex.Height);
+                writer.Write (tex.TruncatedWidth);
+                writer.Write (tex.TruncatedHeight);
+                writer.Write (tex.TexType);
+                writer.BaseStream.Position = 4;
+                writer.Write ((int)writer.BaseStream.Length);
+                header = mem.ToArray();
+            }
+            var input = arc.File.CreateStream (entry.Offset, entry.Size);
+            return new PrefixStream (header, input);
+        }
+
+        public override ResourceScheme Scheme
+        {
+            get { return new PsbScheme { KnownKeys = KnownKeys }; }
+            set { KnownKeys = ((PsbScheme)value).KnownKeys; }
+        }
+    }
+
+    /// <summary>
+    /// PSB container deserialization.
+    /// </summary>
+    internal sealed class PsbReader : IDisposable
+    {
+        BinaryReader        m_input;
+
+        public PsbReader (Stream input)
+        {
+            m_input = new ArcView.Reader (input);
+        }
+
+        public int      Version { get { return m_version; } }
+        public bool IsEncrypted { get { return 0 != (m_flags & 1); } }
+        public int   DataOffset { get { return m_chunk_data; } }
+
+        public T GetRootKey<T> (string key)
+        {
+            int obj_offset;
+            if (!GetKey (key, m_root, out obj_offset))
+                return default(T);
+            return (T)GetObject (obj_offset);
+        }
+
+        int m_version;
+        int m_flags;
+
+        uint[] m_key = new uint[6];
+        Dictionary<int, string> m_name_map;
+
+        public bool Parse (uint key)
+        {
+            m_key[0] = 0x075BCD15;
+            m_key[1] = 0x159A55E5;
+            m_key[2] = 0x1F123BB5;
+            m_key[3] = key;
+            m_key[4] = 0;
+            m_key[5] = 0;
+
+            if (!ReadHeader())
+                return false;
+            if (Version < 2)
+                throw new NotSupportedException ("Not supported PSB version");
+            m_name_map = ReadNames();
+//            var dict = GetDict (m_root); // returns all metadata in a single dictionary
+
+            return true;
+        }
+
+        public List<Entry> GetTextures ()
+        {
+            var source = GetRootKey<IDictionary> ("source");
+            if (null == source || 0 == source.Count)
+                return null;
+            var dir = new List<Entry> (source.Count);
+            foreach (DictionaryEntry item in source)
+            {
+                var item_value = item.Value as IDictionary;
+                if (null == item_value)
+                    continue;
+                var texture = item_value["texture"] as IDictionary;
+                if (null == texture)
+                    continue;
+                var pixel = texture["pixel"] as EmChunk;
+                if (null == pixel)
+                    continue;
+                var entry = new TexEntry {
+                    Name            = item.Key.ToString(),
+                    Type            = "image",
+                    Offset          = DataOffset + pixel.Offset,
+                    Size            = (uint)pixel.Length,
+                    TexType         = texture["type"].ToString(),
+                    Width           = Convert.ToInt32 (texture["width"]),
+                    Height          = Convert.ToInt32 (texture["height"]),
+                    TruncatedWidth  = Convert.ToInt32 (texture["truncated_width"]),
+                    TruncatedHeight = Convert.ToInt32 (texture["truncated_height"]),
+                };
+                dir.Add (entry);
+            }
+            return dir;
+        }
+
+        int m_names;
+        int m_strings;
+        int m_strings_data;
+        int m_chunk_offsets;
+        int m_chunk_lengths;
+        int m_chunk_data;
+        int m_root;
+        byte[] m_data;
+
+        bool ReadHeader ()
+        {
+            m_input.BaseStream.Position = 4;
+            m_version = m_input.ReadUInt16();
+            m_flags = m_input.ReadUInt16();
+            if (m_version < 3)
+                m_flags = 2;
+
+            var header = new byte[0x24];
+            m_input.Read (header, 0, header.Length);
+            if (0 != (m_flags & 1))
+                Decrypt (header, 0, 0x24);
+
+            m_names         = LittleEndian.ToInt32 (header, 0x04);
+            m_strings       = LittleEndian.ToInt32 (header, 0x08);
+            m_strings_data  = LittleEndian.ToInt32 (header, 0x0C);
+            m_chunk_offsets = LittleEndian.ToInt32 (header, 0x10);
+            m_chunk_lengths = LittleEndian.ToInt32 (header, 0x14);
+            m_chunk_data    = LittleEndian.ToInt32 (header, 0x18);
+            m_root          = LittleEndian.ToInt32 (header, 0x1C);
+
+            int buffer_length = (int)m_input.BaseStream.Length;
+            if (!(m_names           >= 0x28 && m_names < buffer_length
+                  && m_strings      >= 0x28 && m_strings < buffer_length
+                  && m_strings_data >= 0x28 && m_strings_data < buffer_length
+                  && m_chunk_offsets >= 0x28 && m_chunk_offsets < buffer_length
+                  && m_chunk_lengths >= 0x28 && m_chunk_lengths < buffer_length
+                  && m_chunk_data   >= 0x28 && m_chunk_data < buffer_length
+                  && m_root         >= 0x28 && m_root < buffer_length))
+                return false;
+
+            m_data = new byte[m_chunk_data];
+            int data_pos = (int)m_input.BaseStream.Position;
+            m_input.Read (m_data, data_pos, m_chunk_data-data_pos);
+            return true;
+        }
+
+        bool GetKey (string name, int dict_offset, out int value_offset)
+        {
+            value_offset = 0;
+            int offset;
+            if (!GetOffset (name, out offset))
+                return false;
+            var keys = GetArray (++dict_offset);
+            if (0 == keys.Count)
+                return false;
+
+            int upper_bound = keys.Count;
+            int lower_bound = 0;
+            int key_index = 0;
+            while (lower_bound < upper_bound)
+            {
+                key_index = (upper_bound + lower_bound) >> 1;
+                int key = GetArrayElem (keys, key_index);
+                if (key == offset)
+                    break;
+                if (key >= offset)
+                    upper_bound = (upper_bound + lower_bound) >> 1;
+                else
+                    lower_bound = key_index + 1;
+            }
+            if (lower_bound >= upper_bound)
+                return false;
+
+            var values = GetArray (dict_offset + keys.ArraySize);
+            int data_offset = GetArrayElem (values, key_index);
+            value_offset = dict_offset + keys.ArraySize + values.ArraySize + data_offset;
+            return true;
+        }
+
+        bool GetOffset (string name, out int offset)
+        {
+            // FIXME works for ASCII names only.
+            var nm1 = GetArray (m_names);
+            var nm2 = GetArray (m_names + nm1.ArraySize);
+            int i = 0;
+            for (int name_idx = 0; ; ++name_idx)
+            {
+                char symbol = name_idx < name.Length ? name[name_idx] : '\0';
+                int prev_i = i;
+                i = symbol + GetArrayElem (nm1, i);
+                if (i >= nm1.Count || GetArrayElem (nm2, i) != prev_i)
+                    break;
+
+                if (name_idx >= name.Length)
+                {
+                    offset = GetArrayElem (nm1, i);
+                    return true;
+                }
+            }
+            offset = 0;
+            return false;
+        }
+
+        Dictionary<int, string> ReadNames ()
+        {
+            // this implementation is utterly inefficient. FIXME
+            var lookup = new Dictionary<int, byte[]>();
+            var next_lookup = new Dictionary<int, byte[]>();
+            var dict = new Dictionary<int, string>();
+            var nm1 = GetArray (m_names);
+            var nm2 = GetArray (m_names + nm1.ArraySize);
+            lookup[0] = new byte[0];
+            while (lookup.Count > 0)
+            {
+                foreach (var item in lookup)
+                {
+                    int first = GetArrayElem (nm1, item.Key);
+                    for (int i = 0; i < 256; ++i)
+                    {
+                        if (GetArrayElem (nm2, i + first) == item.Key)
+                        {
+                            if (0 == i)
+                                dict[GetArrayElem (nm1, i + first)] = Encoding.UTF8.GetString (item.Value);
+                            else
+                                next_lookup[i+first] = ArrayAppend (item.Value, (byte)i);
+                        }
+                    }
+                }
+                var tmp = lookup;
+                lookup = next_lookup;
+                next_lookup = tmp;
+                next_lookup.Clear();
+            }
+            return dict;
+        }
+
+        static byte[] ArrayAppend (byte[] array, byte n)
+        {
+            var new_array = new byte[array.Length+1];
+            Buffer.BlockCopy (array, 0, new_array, 0, array.Length);
+            new_array[array.Length] = n;
+            return new_array;
+        }
+
+        EmArray GetArray (int offset)
+        {
+            int data_offset = m_data[offset] - 10;
+            var array = new EmArray {
+                Count = GetInteger (offset, 0xC),
+                ElemSize = m_data[offset + data_offset - 1] - 12,
+                DataOffset = offset + data_offset,
+            };
+            array.ArraySize = array.Count * array.ElemSize + data_offset;
+            return array;
+        }
+
+        int GetArrayElem (EmArray a1, int index)
+        {
+            int offset = index * a1.ElemSize;
+            switch (a1.ElemSize)
+            {
+            case 1:
+                return m_data[a1.DataOffset + offset];
+            case 2:
+                return LittleEndian.ToUInt16 (m_data, a1.DataOffset + offset);
+            case 3:
+                return LittleEndian.ToUInt16 (m_data, a1.DataOffset + offset) | m_data[a1.DataOffset + offset + 2] << 16;
+            case 4:
+                return LittleEndian.ToInt32 (m_data, a1.DataOffset + offset);
+            default:
+                throw new InvalidFormatException ("Invalid PSB array structure");
+            }
+        }
+
+        object GetObject (int offset)
+        {
+            switch (m_data[offset])
+            {
+            case 1: return null;
+            case 2: return true;
+            case 3: return false;
+
+            case 4:
+            case 5:
+            case 6:
+            case 7:
+            case 8: return GetInteger (offset, 4);
+
+            case 9:
+            case 0x0A:
+            case 0x0B:
+            case 0x0C: return GetLong (offset);
+
+            case 0x15:
+            case 0x16:
+            case 0x17:
+            case 0x18: return GetString (offset);
+
+            case 0x19:
+            case 0x1A:
+            case 0x1B:
+            case 0x1C: return GetChunk (offset);
+
+            case 0x1D:
+            case 0x1E: return GetFloat (offset);
+            case 0x1F: return GetDouble (offset);
+            case 0x20: return GetList (offset);
+            case 0x21: return GetDict (offset);
+            default:
+                throw new InvalidFormatException (string.Format ("Unknown serialized object type 0x{0:X2}", m_data[offset]));
+            }
+        }
+
+        int GetInteger (int offset, int base_type)
+        {
+            switch (m_data[offset] - base_type)
+            {
+            case 1: return m_data[offset+1];
+            case 2: return LittleEndian.ToUInt16 (m_data, offset+1);
+            case 3: return LittleEndian.ToUInt16 (m_data, offset+1) | m_data[offset+3] << 16;
+            case 4: return LittleEndian.ToInt32 (m_data, offset+1);
+            default: return 0;
+            }
+        }
+
+        float GetFloat (int offset)
+        {
+            if (0x1E == m_data[offset])
+                return BitConverter.ToSingle (m_data, offset+1); // FIXME endianness
+            else
+                return 0.0f;
+        }
+
+        double GetDouble (int offset)
+        {
+            if (0x1F == m_data[offset])
+                return BitConverter.ToDouble (m_data, offset+1); // FIXME endianness
+            else
+                return 0.0;
+        }
+
+        long GetLong (int offset)
+        {
+            switch (m_data[offset])
+            {
+            case 0x09:  return LittleEndian.ToUInt32 (m_data, offset+1) | (long)(sbyte)m_data[offset+5] << 32;
+            case 0x0A:  return LittleEndian.ToUInt32 (m_data, offset+1)
+                               | (long)LittleEndian.ToInt16 (m_data, offset+5) << 32;
+            case 0x0B:  return LittleEndian.ToUInt32 (m_data, offset+1)
+                               | (long)LittleEndian.ToUInt16 (m_data, offset+5) << 32
+                               | (long)(sbyte)m_data[offset+6] << 48;
+            case 0x0C:  return LittleEndian.ToInt64 (m_data, offset+1);
+            default:    return 0L;
+            }
+        }
+
+        string GetString (int obj_offset)
+        {
+            int index = GetInteger (obj_offset, 0x14);
+            var array = GetArray (m_strings);
+            int data_offset = m_strings_data + GetArrayElem (array, index);
+            return Binary.GetCString (m_data, data_offset, m_data.Length-data_offset, Encoding.UTF8);
+        }
+
+        IList GetList (int offset)
+        {
+            var array = GetArray (++offset);
+            var list = new ArrayList (array.Count);
+            for (int i = 0; i < array.Count; ++i)
+            {
+                int item_offset = offset + array.ArraySize + GetArrayElem (array, i);
+                var item = GetObject (item_offset);
+                list.Add (item);
+            }
+            return list;
+        }
+
+        IDictionary GetDict (int offset)
+        {
+            var keys = GetArray (++offset);
+            if (0 == keys.Count)
+                return new Dictionary<string, object>();
+            var values = GetArray (offset + keys.ArraySize);
+            var dict = new Dictionary<string, object> (keys.Count);
+            for (int i = 0; i < keys.Count; ++i)
+            {
+                int key = GetArrayElem (keys, i);
+                var value_offset = GetArrayElem (values, i);
+                string key_name = m_name_map[key];
+                dict[key_name] = GetObject (offset + value_offset + keys.ArraySize + values.ArraySize);
+            }
+            return dict;
+        }
+
+        EmChunk GetChunk (int offset)
+        {
+            var chunk_index = GetInteger (offset, 0x18);
+            var chunks = GetArray (m_chunk_offsets);
+            if (chunk_index >= chunks.Count)
+                throw new InvalidFormatException ("Invalid chunk index");
+            var lengths = GetArray (m_chunk_lengths);
+            return new EmChunk {
+                Offset = GetArrayElem (chunks, chunk_index),
+                Length = GetArrayElem (lengths, chunk_index),
+            };
+        }
+
+        void Decrypt (byte[] data, int offset, int length)
+        {
+            for (int i = 0; i < length; ++i)
+            {
+                if (0 == m_key[4])
+                {
+                    var v5 = m_key[3];
+                    var v6 = m_key[0] ^ (m_key[0] << 11);
+                    m_key[0] = m_key[1];
+                    m_key[1] = m_key[2];
+                    var eax = v6 ^ v5 ^ ((v6 ^ (v5 >> 11)) >> 8);
+                    m_key[2] = v5;
+                    m_key[3] = eax;
+                    m_key[4] = eax;
+                }
+                data[offset+i] ^= (byte)m_key[4];
+                m_key[4] >>= 8;
+            }
+        }
+
+        internal class EmArray
+        {
+            public int  ArraySize;
+            public int  Count;
+            public int  ElemSize;
+            public int  DataOffset;
+        }
+
+        internal class EmChunk
+        {
+            public int  Offset;
+            public int  Length;
+        }
+
+        #region IDisposable Members
+        bool _disposed = false;
+        public void Dispose ()
+        {
+            if (!_disposed)
+            {
+                m_input.Dispose();
+                _disposed = true;
+            }
+        }
+        #endregion
+    }
+
+    internal class PsbTexMetaData : ImageMetaData
+    {
+        public string   TexType;
+        public int      FullWidth;
+        public int      FullHeight;
+        public int      DataOffset;
+    }
+
+    /// <summary>
+    /// Artificial format representing PSB texture.
+    /// </summary>
+    [Export(typeof(ImageFormat))]
+    internal class PsbTextureFormat : ImageFormat
+    {
+        public override string         Tag { get { return "PSB/TEXTURE"; } }
+        public override string Description { get { return "PSB texture format"; } }
+        public override uint     Signature { get { return 0x81C3D2D1; } } // 'PSB' ^ 0x81818181
+
+        public PsbTextureFormat ()
+        {
+            Extensions = new string[0];
+        }
+
+        public override ImageMetaData ReadMetaData (Stream stream)
+        {
+            stream.Position = 4;
+            using (var reader = new BinaryReader (stream, Encoding.UTF8, true))
+            {
+                var info = new PsbTexMetaData { BPP = 32 };
+                info.DataOffset = reader.ReadInt32();
+                info.FullWidth = reader.ReadInt32();
+                info.FullHeight = reader.ReadInt32();
+                info.Width = reader.ReadUInt32();
+                info.Height = reader.ReadUInt32();
+                info.TexType = reader.ReadString();
+                return info;
+            }
+        }
+
+        public override ImageData Read (Stream stream, ImageMetaData info)
+        {
+            var meta = (PsbTexMetaData)info;
+            if (meta.TexType != "RGBA8")
+                throw new NotImplementedException (string.Format ("PSB texture format '{0}' not implemented", meta.TexType));
+            int dst_stride = (int)meta.Width * 4;
+            var pixels = new byte[dst_stride * (int)meta.Height];
+            long next_row = meta.DataOffset;
+            int src_stride = meta.FullWidth * 4;
+            int dst = 0;
+            for (uint i = 0; i < meta.Height; ++i)
+            {
+                stream.Position = next_row;
+                stream.Read (pixels, dst, dst_stride);
+                dst += dst_stride;
+                next_row += src_stride;
+            }
+            return ImageData.Create (info, PixelFormats.Bgra32, null, pixels);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new NotSupportedException ("PsbTextureFormat.Write not supported");
+        }
+    }
+}
diff --git a/supported.html b/supported.html
index 3e1c642a..f5a6557f 100644
--- a/supported.html
+++ b/supported.html
@@ -298,10 +298,11 @@ Touka Gettan<br/>
 </td></tr>
 <tr class="odd"><td>*</td><td><tt>\x00\x00\x04\x00</tt></td><td>No</td></tr>
 <tr><td>*.war</td><td><tt>WARC 1.7</tt><br/><tt>WARC 1.5</tt><br/><tt>WARC 1.3</tt></td><td>No</td><td rowspan="5">Shiina Rio</td><td rowspan="5">
-Classmate no Okaa-san <span class="footnote">ShiinaRio v2.37</span><br/>
+Can Fes! ~Itazura Majo to Naisho no Gakuensai~ <span class="footnote">ShiinaRio v2.47</span><br/>
 Chikan Circle <span class="footnote">ShiinaRio v2.46</span><br/>
 Chikan Circle 2 <span class="footnote">ShiinaRio v2.47</span><br/>
 Chuuchuu Nurse <span class="footnote">ShiinaRio v2.45</span><br/>
+Classmate no Okaa-san <span class="footnote">ShiinaRio v2.37</span><br/>
 Enkaku Sousa <span class="footnote">2.36 or 2.37</span><br/>
 Helter Skelter <span class="footnote">ShiinaRio v2.40</span><br/>
 Hitozuma Onna Kyoushi Reika <span class="footnote">ShiinaRio v2.39</span><br/>
@@ -762,6 +763,9 @@ Mozu<br/>
 <tr><td>*.gpc</td><td><tt>Gpc7</tt></td><td>No</td><td>Super NekoX</td><td>
 Sister Contrast!
 </td></tr>
+<tr class="odd"><td>*.psb</td><td><tt>PSB</tt></td><td>No</td><td>E-mote</td><td>
+Angenehm Platz -Kleiner Garten Sie Erstellen-<br/>
+</td></tr>
 </table>
 <p><a name="note-1" class="footnote">1</a> Non-encrypted only</p>
 </body>