diff --git a/Cargo.toml b/Cargo.toml
index ec3eef6..1914a8d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,7 +15,7 @@ cannyls = "^0.9"
 clap = "2"
 structopt = "^0.2.11"
 trackable = "^0.2.20"
-rustyline = "2"
+rustyline = "5"
 regex = "1"
 indicatif = "^0.11"
 rand = "^0.6"
diff --git a/src/handle.rs b/src/handle.rs
index 9ad79b0..af6b07b 100644
--- a/src/handle.rs
+++ b/src/handle.rs
@@ -4,7 +4,7 @@ use cannyls::lump::{LumpData, LumpId};
 use cannyls::nvm::FileNvm;
 use cannyls::storage::{JournalSnapshot, Storage, StorageBuilder};
 use std::fs::{File, OpenOptions};
-use std::io::Seek;
+use std::io::{stdout, Seek, Write};
 use std::path::Path;
 use std::str;
 
@@ -156,6 +156,18 @@ impl StorageHandle {
             }
         }
     }
+    /// keyに対応するlump dataを生バイト列として出力する
+    pub fn print_as_raw_bytes(&mut self, key: u128) {
+        let result = track!(self.get_as_bytes(key)).unwrap();
+        match result {
+            Some(bytes) => {
+                stdout().write_all(&bytes).unwrap();
+            }
+            None => {
+                println!("no entry for the key {:?}", key);
+            }
+        }
+    }
 
     pub fn delete_key(&mut self, key: u128) -> Result<bool, cannyls::Error> {
         let lump_id = LumpId::new(key);
diff --git a/src/main.rs b/src/main.rs
index 0eec1ad..59ecc6d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -64,6 +64,11 @@ arg_enum! {
         // kanils Get --storage=storage_path --key=lumpid
         GetBytes,
 
+        // lusfストレージの指定したkeyを持つ値を「生のバイト列として」取得する
+        // 存在しないkeyが指定された場合はその旨が出力される
+        // kanils GetRaw --storage=storage_path --key=lumpid
+        GetRaw,
+
         // lusfストレージの指定したkeyを削除する
         // 存在しないkeyが指定された場合はその旨が出力される
         // kanils Delete --storage=storage_path --key=lumpid
@@ -296,7 +301,7 @@ fn main() {
                 let readline = rl.readline(">> ");
                 match readline {
                     Ok(line) => {
-                        rl.add_history_entry(line.as_ref());
+                        rl.add_history_entry(&line);
                         handle_input(&mut handle, &line);
                     }
                     Err(ReadlineError::Interrupted) => {
@@ -324,6 +329,11 @@ fn main() {
             let lumpid_str: String = opt.lumpid.unwrap();
             handle.print_as_bytes(string_to_u128(&lumpid_str));
         }
+        Command::GetRaw => {
+            let mut handle = StorageHandle::create(&opt.storage_path);
+            let lumpid_str: String = opt.lumpid.unwrap();
+            handle.print_as_raw_bytes(string_to_u128(&lumpid_str));
+        }
         Command::Put => {
             let mut handle = StorageHandle::create(&opt.storage_path);
             let lumpid_str: String = opt.lumpid.unwrap();