diff --git a/msg_tool_xp3data/crypt.json b/msg_tool_xp3data/crypt.json
index 1da9b3d..a33c961 100644
--- a/msg_tool_xp3data/crypt.json
+++ b/msg_tool_xp3data/crypt.json
@@ -1756,6 +1756,11 @@
         "$type": "HashCrypt",
         "Title": "パパ大好き！と言ってくれ…～反抗期の娘を催眠アプリで狂愛しつけ～"
     },
+    "Papikon ~Futago no Musume wa Doukyuusei?!~": {
+        "$type": "ChocolatCrypt",
+        "StartupTjsNotEncrypted": true,
+        "Title": "ぱ・ぴ・こ・ん ～双子の娘はどうきゅうせい!?～ | 萌・上・父・上"
+    },
     "Parquet": {
         "$type": "CxEncryption",
         "Mask": 699,
diff --git a/src/scripts/kirikiri/archive/xp3/crypt/chain_reaction.rs b/src/scripts/kirikiri/archive/xp3/crypt/chain_reaction.rs
index 73e687d..b9a1d5a 100644
--- a/src/scripts/kirikiri/archive/xp3/crypt/chain_reaction.rs
+++ b/src/scripts/kirikiri/archive/xp3/crypt/chain_reaction.rs
@@ -315,3 +315,33 @@ impl IChainReactionCrypt for HachukanoCrypt {
         self.base.init(archive)
     }
 }
+
+#[derive(Debug)]
+pub struct ChocolatCrypt {
+    base: ChainReactionCryptBase,
+}
+
+impl ChocolatCrypt {
+    pub fn new(base: BaseSchema) -> ChainReactionCrypt {
+        ChainReactionCrypt::new_inner(
+            base,
+            Box::new(Self {
+                base: ChainReactionCryptBase::new("plugins/list.txt".into()),
+            }),
+        )
+    }
+}
+
+impl IChainReactionCrypt for ChocolatCrypt {
+    fn get_encryption_limit(&self, entry: &Xp3Entry) -> u32 {
+        let limit = self.base.get_encryption_limit(entry);
+        match limit {
+            0 => 0,
+            2 => entry.original_size as u32,
+            _ => 0x100,
+        }
+    }
+    fn init(&self, archive: &mut Xp3Archive) -> Result<()> {
+        self.base.init(archive)
+    }
+}
diff --git a/src/scripts/kirikiri/archive/xp3/crypt/mod.rs b/src/scripts/kirikiri/archive/xp3/crypt/mod.rs
index 1ebd8d7..14f274a 100644
--- a/src/scripts/kirikiri/archive/xp3/crypt/mod.rs
+++ b/src/scripts/kirikiri/archive/xp3/crypt/mod.rs
@@ -268,6 +268,7 @@ enum CryptType {
     },
     ChainReactionCrypt,
     HachukanoCrypt,
+    ChocolatCrypt,
 }
 
 #[derive(Clone, Debug, Deserialize)]
@@ -436,6 +437,9 @@ impl Schema {
             CryptType::HachukanoCrypt => {
                 Box::new(chain_reaction::HachukanoCrypt::new(self.base.clone()))
             }
+            CryptType::ChocolatCrypt => {
+                Box::new(chain_reaction::ChocolatCrypt::new(self.base.clone()))
+            }
         })
     }
 }