diff --git a/locales/ja.json5 b/locales/ja.json5
index 2b2eb48..5ac3c9c 100644
--- a/locales/ja.json5
+++ b/locales/ja.json5
@@ -591,7 +591,7 @@
 	"Show": "表示",
 	"Hide": "非表示",
 	"Names in white were submitted by our supporters on Patreon.": "白い名前はPatreonの支援者を示しています。",
-	"You can also press %1 to bulk-buy or sell %2 of a building at a time, or %3 for %4.": "%1を押すことで%2個単位で、%3を押すことで%3個単位でまとめ買い、まとめ売りができます。",
+	"You can also press %1 to bulk-buy or sell %2 of a building at a time, or %3 for %4.": "%1を押すことで%2個単位で、%3を押すことで%4個単位でまとめ買い、まとめ売りができます。",
 	"Clicking is <b>%1%</b> more powerful.": "クリックによる生産が <b>%1%</b> より強くなる。",
 	"All cookie production <b>multiplied by %1</b>.": "生産量が <b>%1倍</b> になる。",
 	"+%1 CpS": "CpS +%1",
diff --git a/package-lock.json b/package-lock.json
index e52c0b5..06f06e0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "better-japanese",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "better-japanese",
-      "version": "1.2.0",
+      "version": "1.2.1",
       "license": "ISC",
       "devDependencies": {
         "chokidar": "^3.5.3",
diff --git a/package.json b/package.json
index 747d48f..ebad490 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "better-japanese",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "description": "",
   "main": "index.js",
   "scripts": {
diff --git a/src/main.js b/src/main.js
index a9fe398..8cfceb4 100644
--- a/src/main.js
+++ b/src/main.js
@@ -244,7 +244,6 @@ var betterJapanese = {
             // infinityの場合は無限大を返す
             if (!isFinite(value)) return '無限大'// loc("Infinity")
 
-
             if (value > 10 ** (prefixes.length * suffixes.length * 4)) {
                 return value.toPrecision(3).toString()
             }
@@ -261,15 +260,14 @@ var betterJapanese = {
 
             if (second) {
                 // 第二単位を付ける
-                if (preIndex) {
-                    return Math.floor(dispNum / 10000) + prefixes[preIndex] + (dispNum % 10000) + prefixes[preIndex - 1] + suffixes[sufIndex]
-                } else {
-                    if (sufIndex) {
-                        return Math.floor(dispNum / 10000) + suffixes[sufIndex] + (dispNum % 10000) + prefixes[prefixes.length - 1] + suffixes[sufIndex - 1]
-                    } else {
-                        return value
-                    }
-                }
+                if (!preIndex && !sufIndex) return value
+
+                let str = Math.floor(dispNum / 10000) + (preIndex ? prefixes[preIndex] : suffixes[sufIndex])
+                if (dispNum % 10000) str += (dispNum % 10000) + prefixes[preIndex ? preIndex - 1 : prefixes.length - 1]
+                str += suffixes[preIndex ? sufIndex : sufIndex - 1]
+
+                return str !== 'NaN' ? str : value.toPrecision(3).toString()
+
             } else {
                 // 第二単位を付けない
                 return Math.round(value * 10000 / (10 ** (numeral * 4))) / 10000 + prefixes[preIndex] + suffixes[sufIndex]