diff --git a/Cargo.toml b/Cargo.toml
index 1abec36..4e8597e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -95,7 +95,7 @@ hexen-haus = ["memchr", "utils-str"]
 hexen-haus-arc = ["hexen-haus"]
 hexen-haus-img = ["hexen-haus", "image"]
 kirikiri = ["emote-psb", "fancy-regex", "flate2", "json", "lz4", "utils-escape"]
-kirikiri-arc = ["kirikiri", "adler", "bytes", "fastcdc", "flate2", "int-enum", "md5", "msg_tool_xp3data", "parse-size", "sha2", "utils-serde-base64bytes", "utils-simple-pack", "zopfli", "zstd"]
+kirikiri-arc = ["kirikiri", "adler", "bytes", "fastcdc", "flate2", "int-enum", "md5", "msg_tool_xp3data", "parse-size", "sha2", "utils-case-insensitive-string", "utils-serde-base64bytes", "utils-simple-pack", "zopfli", "zstd"]
 kirikiri-img = ["kirikiri", "image", "libtlg-rs"]
 musica = []
 musica-arc = ["musica", "crc32fast", "flate2", "include-flate", "utils-blowfish", "utils-rc4", "utils-serde-base64bytes", "utils-xored-stream"]
@@ -123,6 +123,7 @@ emote-psb = ["dep:emote-psb", "adler", "lz4"]
 # utils feature
 utils-bit-stream = []
 utils-blowfish = ["byteorder"]
+utils-case-insensitive-string = []
 utils-crc32 = []
 utils-escape = ["fancy-regex"]
 utils-mmx = []
diff --git a/msg_tool_xp3data/crypt.json b/msg_tool_xp3data/crypt.json
index 834433b..cbb1f07 100644
--- a/msg_tool_xp3data/crypt.json
+++ b/msg_tool_xp3data/crypt.json
@@ -185,6 +185,9 @@
         "$type": "HashCrypt",
         "Title": "爆走女装計画～もしも俺が女装させられてレディースに入隊させられたら～"
     },
+    "Berry's": {
+        "$type": "SourireCrypt"
+    },
     "Bishuu ~Chigyaku no Mesu Dorei~": {
         "$type": "CxEncryption",
         "Mask": 531,
@@ -221,6 +224,9 @@
         "$type": "PoringSoftCrypt",
         "Title": "ぶらばん！ | 管乐恋曲！"
     },
+    "Cafe Sourire": {
+        "$type": "SourireCrypt"
+    },
     "Café Stella to Shinigami no Chou": {
         "$type": "RiddleCxCrypt",
         "Mask": 622,
@@ -770,6 +776,14 @@
         "$type": "PoringSoftCrypt",
         "Title": "妹快楽堕ち～お兄ちゃんに無理やりハメられてから～ | 沉溺快感中的妹妹～自从被哥哥强行插入后～"
     },
+    "Imouto no Katachi": {
+        "$type": "SourireCrypt",
+        "Title": "イモウトノカタチ | 妹之形"
+    },
+    "Imouto no Okage de Motesugite Yabai.": {
+        "$type": "SourireCrypt",
+        "Title": "妹のおかげでモテすぎてヤバい。 | 因为妹妹让我太受欢迎了糟糕了"
+    },
     "Imouto Shokushu Rape": {
         "$type": "HashCrypt",
         "Title": "妹触手レイプ ～復讐の処女貫通～"
@@ -909,6 +923,10 @@
         "Key": 205,
         "Title": "神頼みしすぎて俺の未来がヤバい。 | 求神太多我的未来糟糕了 | 太依赖咒术的我未来堪忧。"
     },
+    "Kanae to Meguri to no Sonogo ga Icha Love Sugite Yabai.": {
+        "$type": "SourireCrypt",
+        "Title": "叶とメグリとのその後がイチャらぶすぎてヤバい。 | 与叶和爱莉之后的故事太过亲密糟糕了"
+    },
     "Kanjuku Sakuranbou!": {
         "$type": "FlyingShineCrypt",
         "Title": "完熟☆さくらん棒ッ！ ～ヒキオタ達の姉妹交換～"
@@ -1022,6 +1040,10 @@
         "ControlBlockName": "koiga.bin",
         "Title": "恋がさくころ桜どき | 恋花绽放樱飞时"
     },
+    "Koi Suru Kanojo no Bukiyou na Butai": {
+        "$type": "SourireCrypt",
+        "Title": "恋する彼女の不器用な舞台 | 恋爱中的她的笨拙舞台"
+    },
     "Koikishi Purely ☆ Kiss": {
         "$type": "CxEncryption",
         "Mask": 561,
@@ -1069,6 +1091,10 @@
         "Title": "光輪の町、ラベンダーの少女",
         "StartupTjsNotEncrypted": true
     },
+    "Kurano-kunchi no Futago Jijou": {
+        "$type": "SourireCrypt",
+        "Title": "倉野くんちのふたご事情 | 仓野家的双胞胎故事"
+    },
     "Kurenai no Tsuki": {
         "$type": "CxEncryption",
         "Mask": 362,
@@ -1160,6 +1186,10 @@
         "$type": "HashCrypt",
         "Title": "ママとのイキすぎ甘々性活～いっぱい気持ちいいコト教えてあ・げ・る～"
     },
+    "Mamiya-kunchi no Itsutsugo Jijou": {
+        "$type": "SourireCrypt",
+        "Title": "間宮くんちの五つ子事情 | 间宫家的五子情事"
+    },
     "Manakashi no Yuri wa Akaku Somaru [DL]": {
         "$type": "CxEncryption",
         "Mask": 516,
@@ -2105,6 +2135,9 @@
         "ControlBlockName": "walpurgis.bin",
         "Title": "ヴァルプルギス"
     },
+    "With Ribbon": {
+        "$type": "SourireCrypt"
+    },
     "Yome no Ane ga Kyonyuu Sugite": {
         "$type": "HashCrypt",
         "Title": "嫁の姉が巨乳過ぎて我慢できない ～義姉さんがこんなにエロかったなんて！"
@@ -2127,6 +2160,9 @@
         "ControlBlockName": "yomibito.bin",
         "Title": "黄泉ビト知ラズ～甘い雌蕊の性徴詩～"
     },
+    "your diary + H": {
+        "$type": "SourireCrypt"
+    },
     "Yurameku Kokoro ni Michita Sekai de": {
         "$type": "XorCrypt",
         "Key": 205,
diff --git a/src/scripts/kirikiri/archive/xp3/crypt/mod.rs b/src/scripts/kirikiri/archive/xp3/crypt/mod.rs
index 1824811..180de1b 100644
--- a/src/scripts/kirikiri/archive/xp3/crypt/mod.rs
+++ b/src/scripts/kirikiri/archive/xp3/crypt/mod.rs
@@ -4,6 +4,7 @@ use super::archive::*;
 use crate::ext::io::*;
 use crate::scripts::base::*;
 use crate::types::*;
+use crate::utils::case_insensitive_string::*;
 use crate::utils::encoding::*;
 use crate::utils::serde_base64bytes::*;
 use crate::utils::simple_pack::*;
@@ -168,6 +169,7 @@ enum CryptType {
     PoringSoftCrypt,
     AppliqueCrypt,
     TokidokiCrypt,
+    SourireCrypt,
 }
 
 #[derive(Clone, Debug, Deserialize)]
@@ -263,12 +265,13 @@ impl Schema {
             CryptType::PoringSoftCrypt => Box::new(PoringSoftCrypt::new(self.base.clone())),
             CryptType::AppliqueCrypt => Box::new(AppliqueCrypt::new(self.base.clone())),
             CryptType::TokidokiCrypt => Box::new(TokidokiCrypt::new(self.base.clone())),
+            CryptType::SourireCrypt => Box::new(SourireCrypt::new(self.base.clone())),
         })
     }
 }
 
 lazy_static::lazy_static! {
-    static ref CRYPT_SCHEMA: BTreeMap<String, Schema> = {
+    static ref CRYPT_SCHEMA: BTreeMap<CaseInsensitiveString, Schema> = {
         serde_json::from_str(&get_crypt_data()).expect("Failed to parse crypt.json")
     };
     static ref ALIAS_TABLE: HashMap<String, String> = {
@@ -1031,6 +1034,20 @@ impl<R: Read> Read for TokidokiCryptReader<R> {
     }
 }
 
+seek_crypt_filehash_key_impl!(SourireCrypt, SourireCryptReader<T>);
+
+impl<R: Read> Read for SourireCryptReader<R> {
+    fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
+        let readed = self.inner.read(buf)?;
+        let key = (self.key ^ 0xCD) as u8;
+        for t in (&mut buf[..readed]).iter_mut() {
+            *t ^= key;
+        }
+        self.pos += readed as u64;
+        Ok(readed)
+    }
+}
+
 #[test]
 fn test_deserialize_crypt() {
     for (key, schema) in CRYPT_SCHEMA.iter() {
diff --git a/src/utils/case_insensitive_string.rs b/src/utils/case_insensitive_string.rs
new file mode 100644
index 0000000..5283c99
--- /dev/null
+++ b/src/utils/case_insensitive_string.rs
@@ -0,0 +1,76 @@
+use serde::Deserialize;
+use std::borrow::Borrow;
+use std::cmp::Ordering;
+use std::ops::{Deref, DerefMut};
+
+#[derive(Debug, Deserialize)]
+#[serde(transparent)]
+/// A case-insensitive string wrapper. Can be used as a key in BTreeMap with a case-insensitive ordering.
+///
+/// WARN: Borrowing a &str/&String from this struct will not be case-insensitive. So getting a value from a BTreeMap with a &str/&String key is not ignore case. It just use it's original case.
+pub struct CaseInsensitiveString(String);
+
+impl PartialEq for CaseInsensitiveString {
+    fn eq(&self, other: &Self) -> bool {
+        self.0.eq_ignore_ascii_case(&other.0)
+    }
+}
+
+impl PartialEq<String> for CaseInsensitiveString {
+    fn eq(&self, other: &String) -> bool {
+        self.0.eq_ignore_ascii_case(other)
+    }
+}
+
+impl PartialEq<&str> for CaseInsensitiveString {
+    fn eq(&self, other: &&str) -> bool {
+        self.0.eq_ignore_ascii_case(other)
+    }
+}
+
+impl Eq for CaseInsensitiveString {}
+
+impl PartialOrd for CaseInsensitiveString {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        Some(self.cmp(other))
+    }
+}
+
+impl Ord for CaseInsensitiveString {
+    fn cmp(&self, other: &Self) -> Ordering {
+        self.0
+            .to_ascii_lowercase()
+            .cmp(&other.0.to_ascii_lowercase())
+    }
+}
+
+impl Deref for CaseInsensitiveString {
+    type Target = String;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+impl DerefMut for CaseInsensitiveString {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+
+impl Borrow<str> for CaseInsensitiveString {
+    fn borrow(&self) -> &str {
+        &self.0
+    }
+}
+
+impl Borrow<String> for CaseInsensitiveString {
+    fn borrow(&self) -> &String {
+        &self.0
+    }
+}
+
+impl std::fmt::Display for CaseInsensitiveString {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        self.0.fmt(f)
+    }
+}
diff --git a/src/utils/mod.rs b/src/utils/mod.rs
index 6d58893..b2ff038 100644
--- a/src/utils/mod.rs
+++ b/src/utils/mod.rs
@@ -3,6 +3,8 @@
 pub mod bit_stream;
 #[cfg(feature = "utils-blowfish")]
 pub mod blowfish;
+#[cfg(feature = "utils-case-insensitive-string")]
+pub mod case_insensitive_string;
 pub mod counter;
 #[cfg(feature = "utils-crc32")]
 pub mod crc32;