diff --git a/src/detections/print.rs b/src/detections/print.rs
index fb8a34c8..2850f0ef 100644
--- a/src/detections/print.rs
+++ b/src/detections/print.rs
@@ -50,17 +50,6 @@ impl Message {
     }
 }
 
-/// メッセージテキストを言語設定に合わせて返す
-/// println!("{}", <MessageText>) とすると今の言語設定で出力される
-impl fmt::Display for MessageText {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        match get_lang() {
-            Lang::Ja => write!(f, "{}", self.ja),
-            Lang::En => write!(f, "{}", self.en),
-        }
-    }
-}
-
 /// Argsから言語情報を読み取り Lang を返す
 pub fn get_lang() -> Lang {
     let lang: String = singleton().args.value_of("lang").unwrap_or("").to_string();
diff --git a/src/main.rs b/src/main.rs
index 46327208..5eb2d00e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,7 +5,6 @@ use quick_xml::de::DeError;
 use std::{fs, path::PathBuf, process};
 use yamato_event_analyzer::detections::configs;
 use yamato_event_analyzer::detections::detection;
-use yamato_event_analyzer::detections::print::MESSAGES;
 use yamato_event_analyzer::omikuji::Omikuji;
 use yamato_event_analyzer::toml;
 
@@ -14,20 +13,6 @@ fn main() -> Result<(), DeError> {
     let mut toml = toml::ParseToml::new();
     &toml.read_dir("rules".to_string());
 
-    for rule in toml.rules {
-        match rule {
-            Ok(_rule) => {
-                let mut message = MESSAGES.lock().unwrap();
-                if let Some(messages) = _rule.rule.messages {
-                    for (key, texts) in messages {
-                        message.insert(key, texts);
-                    }
-                }
-            }
-            Err(_) => (),
-        }
-    }
-
     let filepath: String = configs::singleton()
         .args
         .value_of("filepath")
diff --git a/src/models/rule.rs b/src/models/rule.rs
index 66f77e4a..54fc41de 100644
--- a/src/models/rule.rs
+++ b/src/models/rule.rs
@@ -5,13 +5,7 @@ use serde::Deserialize;
 pub struct Rule {
     pub severity: Option<String>,
     pub name: Option<String>,
-    pub messages: Option<Vec<(String, MessageText)>>,
-}
-
-#[derive(Debug, Deserialize)]
-pub struct MessageText {
-    pub ja: String,
-    pub en: String,
+    pub messages: Option<Vec<(String, String)>>,
 }
 
 #[derive(Debug, Deserialize)]