diff --git a/src/ext/io.rs b/src/ext/io.rs
index 0d65996..4152867 100644
--- a/src/ext/io.rs
+++ b/src/ext/io.rs
@@ -1,6 +1,7 @@
 //!Extensions for IO operations.
+use crate::types::Encoding;
 use crate::utils::encoding::decode_to_string;
-use crate::{types::Encoding, utils::struct_pack::StructUnpack};
+use crate::utils::struct_pack::{StructPack, StructUnpack};
 use std::ffi::CString;
 use std::io::*;
 use std::sync::Mutex;
@@ -971,6 +972,13 @@ pub trait WriteExt {
 
     /// Writes a C-style string (null-terminated) to the writer.
     fn write_cstring(&mut self, value: &CString) -> Result<()>;
+    /// Write a struct to the writer.
+    fn write_struct<T: StructPack>(
+        &mut self,
+        value: &T,
+        big: bool,
+        encoding: Encoding,
+    ) -> Result<()>;
 }
 
 impl<T: Write> WriteExt for T {
@@ -1032,6 +1040,17 @@ impl<T: Write> WriteExt for T {
     fn write_cstring(&mut self, value: &CString) -> Result<()> {
         self.write_all(value.as_bytes_with_nul())
     }
+
+    fn write_struct<V: StructPack>(
+        &mut self,
+        value: &V,
+        big: bool,
+        encoding: Encoding,
+    ) -> Result<()> {
+        value
+            .pack(self, big, encoding)
+            .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, e))
+    }
 }
 
 /// A trait to help to write data to a writer at a specific offset.
@@ -1144,6 +1163,9 @@ impl<T: Write + Seek> WriteAt for T {
 pub trait SeekExt {
     /// Returns the length of the stream.
     fn stream_length(&mut self) -> Result<u64>;
+    /// Aligns the current position to the given alignment.
+    /// Returns the new position after alignment.
+    fn align(&mut self, align: u64) -> Result<u64>;
 }
 
 impl<T: Seek> SeekExt for T {
@@ -1153,6 +1175,15 @@ impl<T: Seek> SeekExt for T {
         self.seek(SeekFrom::Start(current_pos))?;
         Ok(length)
     }
+
+    fn align(&mut self, align: u64) -> Result<u64> {
+        let current_pos = self.stream_position()?;
+        let aligned_pos = (current_pos + align - 1) & !(align - 1);
+        if aligned_pos != current_pos {
+            self.seek(SeekFrom::Start(aligned_pos))?;
+        }
+        Ok(aligned_pos)
+    }
 }
 
 /// A memory reader that can read data from a vector of bytes.
@@ -1457,6 +1488,9 @@ impl Write for MemWriter {
 }
 
 impl Seek for MemWriter {
+    /// Seeks to a new position in the writer.
+    /// If the new position is beyond the current length of the data, the data is resized when writing.
+    /// (This means that seeking beyond the end does not immediately resize the data.)
     fn seek(&mut self, pos: SeekFrom) -> Result<u64> {
         match pos {
             SeekFrom::Start(offset) => {
diff --git a/src/scripts/kirikiri/mod.rs b/src/scripts/kirikiri/mod.rs
index 074aa79..bb1777e 100644
--- a/src/scripts/kirikiri/mod.rs
+++ b/src/scripts/kirikiri/mod.rs
@@ -5,6 +5,7 @@ pub mod ks;
 pub mod mdf;
 pub mod scn;
 pub mod simple_crypt;
+pub mod tjs2;
 pub mod tjs_ns0;
 use std::collections::HashMap;
 use std::sync::Arc;
diff --git a/src/scripts/kirikiri/tjs2.rs b/src/scripts/kirikiri/tjs2.rs
new file mode 100644
index 0000000..5ce49f0
--- /dev/null
+++ b/src/scripts/kirikiri/tjs2.rs
@@ -0,0 +1,306 @@
+//! Kirikiri compiled TJS2 script
+use crate::ext::io::*;
+use crate::scripts::base::*;
+use crate::types::*;
+use crate::utils::encoding::*;
+use crate::utils::struct_pack::*;
+use anyhow::Result;
+use serde::{Deserialize, Serialize};
+use std::io::{Read, Seek, Write};
+
+#[derive(Debug)]
+/// Kirikiri TJS2 Script Builder
+pub struct Tjs2Builder {}
+
+impl Tjs2Builder {
+    /// Creates a new instance of `Tjs2Builder`
+    pub fn new() -> Self {
+        Self {}
+    }
+}
+
+impl ScriptBuilder for Tjs2Builder {
+    fn default_encoding(&self) -> Encoding {
+        Encoding::Utf16LE
+    }
+
+    fn build_script(
+        &self,
+        buf: Vec<u8>,
+        _filename: &str,
+        encoding: Encoding,
+        _archive_encoding: Encoding,
+        config: &ExtraConfig,
+        _archive: Option<&Box<dyn Script>>,
+    ) -> Result<Box<dyn Script>> {
+        Ok(Box::new(Tjs2::new(buf, encoding, config)?))
+    }
+
+    fn extensions(&self) -> &'static [&'static str] {
+        &["tjs"]
+    }
+
+    fn script_type(&self) -> &'static ScriptType {
+        &ScriptType::KirikiriTjs2
+    }
+
+    fn is_this_format(&self, _filename: &str, buf: &[u8], buf_len: usize) -> Option<u8> {
+        // TJS2 tag 100 version
+        if buf_len >= 8 && buf.starts_with(b"TJS2100\0") {
+            return Some(40);
+        }
+        None
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+struct DataArea {
+    byte_array: Vec<u8>,
+    short_array: Vec<i16>,
+    long_array: Vec<i32>,
+    longlong_array: Vec<i64>,
+    double_array: Vec<f64>,
+    string_array: Vec<String>,
+    octet_array: Vec<Vec<u8>>,
+}
+
+impl StructUnpack for DataArea {
+    fn unpack<R: Read + Seek>(reader: &mut R, big: bool, encoding: Encoding) -> Result<Self> {
+        reader.align(4)?;
+        let start_loc = reader.stream_position()?;
+        let mut data_tag = [0; 4];
+        reader.read_exact(&mut data_tag)?;
+        if &data_tag != b"DATA" {
+            return Err(anyhow::anyhow!("Invalid DATA tag"));
+        }
+        let data_size = u32::unpack(reader, big, encoding)?;
+        let count = u32::unpack(reader, big, encoding)? as usize;
+        let byte_array = reader.read_exact_vec(count)?;
+        reader.align(4)?;
+        let short_count = u32::unpack(reader, big, encoding)? as usize;
+        let short_array = reader.read_struct_vec(short_count, big, encoding)?;
+        reader.align(4)?;
+        let long_count = u32::unpack(reader, big, encoding)? as usize;
+        let long_array = reader.read_struct_vec(long_count, big, encoding)?;
+        let longlong_count = u32::unpack(reader, big, encoding)? as usize;
+        let longlong_array = reader.read_struct_vec(longlong_count, big, encoding)?;
+        let double_count = u32::unpack(reader, big, encoding)? as usize;
+        let double_array = reader.read_struct_vec(double_count, big, encoding)?;
+        let str_count = u32::unpack(reader, big, encoding)? as usize;
+        let mut string_array = Vec::with_capacity(str_count);
+        for _ in 0..str_count {
+            let str_len = u32::unpack(reader, big, encoding)? as usize;
+            let str_bytes = reader.read_exact_vec(if encoding.is_utf16le() {
+                str_len * 2
+            } else {
+                str_len
+            })?;
+            let s = decode_to_string(encoding, &str_bytes, true)?;
+            reader.align(4)?;
+            string_array.push(s);
+        }
+        let octet_count = u32::unpack(reader, big, encoding)? as usize;
+        let mut octet_array = Vec::with_capacity(octet_count);
+        for _ in 0..octet_count {
+            let octet_len = u32::unpack(reader, big, encoding)? as usize;
+            let octet_bytes = reader.read_exact_vec(octet_len)?;
+            reader.align(4)?;
+            octet_array.push(octet_bytes);
+        }
+        let end_loc = reader.stream_position()?;
+        if end_loc - start_loc != data_size as u64 {
+            return Err(anyhow::anyhow!(
+                "DATA size mismatch: expected {}, got {}",
+                data_size,
+                end_loc - start_loc
+            ));
+        }
+        Ok(DataArea {
+            byte_array,
+            short_array,
+            long_array,
+            longlong_array,
+            double_array,
+            string_array,
+            octet_array,
+        })
+    }
+}
+
+impl StructPack for DataArea {
+    fn pack<W: Write>(&self, writer: &mut W, big: bool, encoding: Encoding) -> Result<()> {
+        writer.write_all(b"DATA")?;
+        let mut tmp = MemWriter::new();
+        tmp.write_struct(&(self.byte_array.len() as u32), big, encoding)?;
+        tmp.write_all(&self.byte_array)?;
+        tmp.align(4)?;
+        tmp.write_struct(&(self.short_array.len() as u32), big, encoding)?;
+        for v in &self.short_array {
+            tmp.write_struct(v, big, encoding)?;
+        }
+        tmp.align(4)?;
+        tmp.write_struct(&(self.long_array.len() as u32), big, encoding)?;
+        for v in &self.long_array {
+            tmp.write_struct(v, big, encoding)?;
+        }
+        tmp.write_struct(&(self.longlong_array.len() as u32), big, encoding)?;
+        for v in &self.longlong_array {
+            tmp.write_struct(v, big, encoding)?;
+        }
+        tmp.write_struct(&(self.double_array.len() as u32), big, encoding)?;
+        for v in &self.double_array {
+            tmp.write_struct(v, big, encoding)?;
+        }
+        tmp.write_struct(&(self.string_array.len() as u32), big, encoding)?;
+        for s in &self.string_array {
+            let encoded = encode_string(encoding, s, false)?;
+            let str_len = if encoding.is_utf16le() {
+                encoded.len() / 2
+            } else {
+                encoded.len()
+            };
+            tmp.write_struct(&(str_len as u32), big, encoding)?;
+            tmp.write_all(&encoded)?;
+            tmp.align(4)?;
+        }
+        tmp.write_struct(&(self.octet_array.len() as u32), big, encoding)?;
+        for o in &self.octet_array {
+            tmp.write_struct(&(o.len() as u32), big, encoding)?;
+            tmp.write_all(o)?;
+            tmp.align(4)?;
+        }
+        // make sure final size is aligned to 4 bytes
+        tmp.data.resize(tmp.pos, 0);
+        let data = tmp.into_inner();
+        writer.write_struct(&(data.len() as u32 + 8), big, encoding)?;
+        writer.write_all(&data)?;
+        Ok(())
+    }
+}
+
+/// Kirikiri TJS2 Script
+#[derive(Debug)]
+pub struct Tjs2 {
+    data_area: DataArea,
+    remaing: Vec<u8>,
+    custom_yaml: bool,
+}
+
+impl Tjs2 {
+    /// Creates a new `Tjs2` script from the given buffer
+    ///
+    /// * `buf` - The buffer containing the TJS2 data
+    /// * `encoding` - The encoding to use for strings
+    /// * `config` - Extra configuration options
+    pub fn new(buf: Vec<u8>, encoding: Encoding, config: &ExtraConfig) -> Result<Self> {
+        let mut reader = MemReader::new(buf);
+        let mut header = [0u8; 8];
+        reader.read_exact(&mut header)?;
+        if &header != b"TJS2100\0" {
+            return Err(anyhow::anyhow!("Invalid TJS2 header: {:?}", &header));
+        }
+        let _file_size = reader.read_u32()?;
+        let data_area = DataArea::unpack(&mut reader, false, encoding)?;
+        let mut remaing = Vec::new();
+        reader.read_to_end(&mut remaing)?;
+        Ok(Self {
+            data_area,
+            remaing,
+            custom_yaml: config.custom_yaml,
+        })
+    }
+}
+
+impl Script for Tjs2 {
+    fn default_output_script_type(&self) -> OutputScriptType {
+        OutputScriptType::Json
+    }
+
+    fn default_format_type(&self) -> FormatOptions {
+        FormatOptions::None
+    }
+
+    fn is_output_supported(&self, _: OutputScriptType) -> bool {
+        true
+    }
+
+    fn custom_output_extension<'a>(&'a self) -> &'a str {
+        if self.custom_yaml { "yaml" } else { "json" }
+    }
+
+    fn extract_messages(&self) -> Result<Vec<Message>> {
+        let mut messages = Vec::new();
+        for s in self.data_area.string_array.iter() {
+            messages.push(Message {
+                name: None,
+                message: s.clone(),
+            });
+        }
+        Ok(messages)
+    }
+
+    fn import_messages<'a>(
+        &'a self,
+        messages: Vec<Message>,
+        mut file: Box<dyn WriteSeek + 'a>,
+        _filename: &str,
+        encoding: Encoding,
+        replacement: Option<&'a ReplacementTable>,
+    ) -> Result<()> {
+        let mut data_area = self.data_area.clone();
+        data_area.string_array = messages
+            .iter()
+            .map(|m| {
+                let mut s = m.message.clone();
+                if let Some(table) = replacement {
+                    for (from, to) in &table.map {
+                        s = s.replace(from, to);
+                    }
+                }
+                s
+            })
+            .collect();
+        file.write_all(b"TJS2100\0")?;
+        file.write_u32(0)?; // placeholder for file size
+        data_area.pack(&mut file, false, encoding)?;
+        file.write_all(&self.remaing)?;
+        let file_size = file.stream_length()?;
+        file.write_u32_at(8, file_size as u32)?; // write actual file size
+        Ok(())
+    }
+
+    fn custom_export(&self, filename: &std::path::Path, encoding: Encoding) -> Result<()> {
+        let s = if self.custom_yaml {
+            serde_yaml_ng::to_string(&self.data_area)?
+        } else {
+            serde_json::to_string_pretty(&self.data_area)?
+        };
+        let encoded = encode_string(encoding, &s, false)?;
+        let mut file = crate::utils::files::write_file(filename)?;
+        file.write_all(&encoded)?;
+        Ok(())
+    }
+
+    fn custom_import<'a>(
+        &'a self,
+        custom_filename: &'a str,
+        mut file: Box<dyn WriteSeek + 'a>,
+        encoding: Encoding,
+        output_encoding: Encoding,
+    ) -> Result<()> {
+        let data = crate::utils::files::read_file(custom_filename)?;
+        let s = decode_to_string(output_encoding, &data, true)?;
+        let data_area: DataArea = if self.custom_yaml {
+            serde_yaml_ng::from_str(&s)?
+        } else {
+            serde_json::from_str(&s)?
+        };
+        file.write_all(b"TJS2100\0")?;
+        file.write_u32(0)?; // placeholder for file size
+        data_area.pack(&mut file, false, encoding)?;
+        file.write_all(&self.remaing)?;
+        let file_size = file.stream_length()?;
+        file.write_u32_at(8, file_size as u32)?; // write actual file size
+        Ok(())
+    }
+}
diff --git a/src/scripts/mod.rs b/src/scripts/mod.rs
index 733c499..cae7cdf 100644
--- a/src/scripts/mod.rs
+++ b/src/scripts/mod.rs
@@ -116,6 +116,8 @@ lazy_static::lazy_static! {
         Box::new(artemis::panmimisoft::txt::TxtBuilder::new()),
         #[cfg(feature = "kirikiri")]
         Box::new(kirikiri::tjs_ns0::TjsNs0Builder::new()),
+        #[cfg(feature = "kirikiri")]
+        Box::new(kirikiri::tjs2::Tjs2Builder::new()),
     ];
     /// A list of all script extensions.
     pub static ref ALL_EXTS: Vec<String> =
diff --git a/src/types.rs b/src/types.rs
index 3c055ce..6811c53 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -518,6 +518,10 @@ pub enum ScriptType {
     /// Kirikiri MDF (zlib compressed) file
     KirikiriMdf,
     #[cfg(feature = "kirikiri")]
+    #[value(alias("kr-tjs2"))]
+    /// Kirikiri compiled TJS2 script
+    KirikiriTjs2,
+    #[cfg(feature = "kirikiri")]
     #[value(alias("kr-tjs-ns0"))]
     /// Kirikiri TJS NS0 binary encoded script
     KirikiriTjsNs0,