diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..8c52ff9
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,12 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..176a458
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+* text=auto
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2a083b3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+bower_components
+coverage
+node_modules
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..e05e1e7
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,10 @@
+git:
+  depth: 1
+branches:
+  except: /^v\d/
+language: node_js
+node_js: node
+script: npm run-script pretest && npm run-script coverage
+after_script:
+  - npm install istanbul-coveralls
+  - node node_modules/.bin/istanbul-coveralls
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..1d6cf10
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Shinnosuke Watanabe
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e5d0ab0
--- /dev/null
+++ b/README.md
@@ -0,0 +1,54 @@
+# array-to-sentence-ja
+
+[![NPM version](https://img.shields.io/npm/v/array-to-sentence-ja.svg)](https://www.npmjs.com/package/array-to-sentence-ja)
+[![Build Status](https://travis-ci.org/shinnn/array-to-sentence-ja.svg?branch=master)](https://travis-ci.org/shinnn/array-to-sentence-ja)
+[![Coverage Status](https://img.shields.io/coveralls/shinnn/array-to-sentence-ja.svg)](https://coveralls.io/github/shinnn/array-to-sentence-ja?branch=master)
+[![Dependency Status](https://david-dm.org/shinnn/array-to-sentence-ja.svg)](https://david-dm.org/shinnn/array-to-sentence-ja)
+[![devDependency Status](https://david-dm.org/shinnn/array-to-sentence-ja/dev-status.svg)](https://david-dm.org/shinnn/array-to-sentence-ja#info=devDependencies)
+
+Japanese-friendly version of [array-to-sentence](https://github.com/shinnn/array-to-sentence):
+
+> Join all elements of an array and create a human-readable string
+
+```javascript
+import arrayToSentenceJa from 'array-to-sentence-ja';
+
+arrayToSentenceJa(['春', '夏', '秋', '冬']); //=> '春、夏、秋および冬'
+```
+
+## Installation
+
+#### [npm](https://www.npmjs.com/)
+
+```
+npm install array-to-sentence-ja
+```
+
+#### [Bower](http://bower.io/)
+
+```
+bower install array-to-sentence-ja
+```
+
+### Standalone
+
+[Download the script file directly.](https://raw.githubusercontent.com/shinnn/array-to-sentence-ja/master/browser.js)
+
+## API
+
+### arrayToSentenceJa(*array* [, *options*])
+
+*array*: `Array` of any values  
+*options*: `Object`  
+Return: `String`
+
+Almost the same as [array-to-sentence](https://github.com/shinnn/array-to-sentence#arraytosentencearray--options), except that [`separator`](https://github.com/shinnn/array-to-sentence#optionsseparator) option defaults to `'、'`, and [`lastSeparator`](https://github.com/shinnn/array-to-sentence#optionslastseparator) option defaults to `'および'`.
+
+```javascript
+arrayToSentenceJa(['春', '夏', '秋', '冬'], {lastSeparator: '、そして'}); //=> '春、夏、秋、そして冬'
+```
+## License
+
+Copyright (c) 2016 [Shinnosuke Watanabe](https://github.com/shinnn)
+
+Licensed under [the MIT License](./LICENSE).
diff --git a/bower.json b/bower.json
new file mode 100644
index 0000000..eb5d086
--- /dev/null
+++ b/bower.json
@@ -0,0 +1,41 @@
+{
+  "name": "array-to-sentence-ja",
+  "description": "Japanese-friendly version of array-to-sentence",
+  "keywords": [
+    "to-sentence",
+    "sentence",
+    "array",
+    "join",
+    "human",
+    "readable",
+    "string",
+    "separator",
+    "comma",
+    "and",
+    "natural-language",
+    "ja",
+    "japanese"
+  ],
+  "main": "browser.js",
+  "moduleType": "globals",
+  "homepage": "https://github.com/shinnn/array-to-sentence-ja",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/shinnn/array-to-sentence-ja.git"
+  },
+  "authors": [
+    "Shinnosuke Watanabe (https://github.com/shinnn)"
+  ],
+  "license": "MIT",
+  "dependencies": {
+    "array-to-sentence": "^1.1.0"
+  },
+  "ignore": [
+    "**/.*",
+    "*.js",
+    "*.json",
+    "*.yml",
+    "coverage",
+    "node_modules"
+  ]
+}
diff --git a/browser.js b/browser.js
new file mode 100644
index 0000000..330a81f
--- /dev/null
+++ b/browser.js
@@ -0,0 +1,12 @@
+/*!
+ * array-to-sentence-ja | MIT (c) Shinnosuke Watanabe
+ * https://github.com/shinnn/array-to-sentence-ja
+*/
+window.arrayToSentenceJa = function arrayToSentenceJa(arr, options) {
+  'use strict';
+
+  return window.arrayToSentence(arr, Object.assign({
+    separator: '、',
+    lastSeparator: 'および'
+  }, options));
+};
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..546d571
--- /dev/null
+++ b/index.js
@@ -0,0 +1,15 @@
+/*!
+ * array-to-sentence-ja | MIT (c) Shinnosuke Watanabe
+ * https://github.com/shinnn/array-to-sentence-ja
+*/
+'use strict';
+
+var arrayToSentence = require('array-to-sentence');
+var objectAssign = require('object-assign');
+
+module.exports = function arrayToSentenceJa(arr, options) {
+  return arrayToSentence(arr, objectAssign({
+    separator: '、',
+    lastSeparator: 'および'
+  }, options));
+};
diff --git a/index.jsnext.js b/index.jsnext.js
new file mode 100644
index 0000000..17e6182
--- /dev/null
+++ b/index.jsnext.js
@@ -0,0 +1,12 @@
+/*!
+ * array-to-sentence-ja | MIT (c) Shinnosuke Watanabe
+ * https://github.com/shinnn/array-to-sentence-ja
+*/
+import arrayToSentence from 'array-to-sentence';
+
+export default function arrayToSentenceJa(arr, options) {
+  return arrayToSentence(arr, Object.assign({
+    separator: '、',
+    lastSeparator: 'および'
+  }, options));
+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..626a9e8
--- /dev/null
+++ b/package.json
@@ -0,0 +1,51 @@
+{
+  "name": "array-to-sentence-ja",
+  "version": "0.0.0",
+  "description": "Japanese-friendly version of array-to-sentence",
+  "repository": "shinnn/array-to-sentence-ja",
+  "author": "Shinnosuke Watanabe (https://github.com/shinnn)",
+  "scripts": {
+    "pretest": "bower install --production && eslint --fix --config @shinnn --ignore-path .gitignore .",
+    "test": "node --strong_mode --throw-deprecation --track-heap-objects test.js | tap-spec",
+    "coverage": "istanbul cover -x=bower_components/array-to-sentence/* test.js"
+  },
+  "license": "MIT",
+  "jsnext:main": "index.jsnext.js",
+  "files": [
+    "index.js",
+    "index.jsnext.js"
+  ],
+  "keywords": [
+    "to-sentence",
+    "sentence",
+    "array",
+    "join",
+    "human",
+    "readable",
+    "string",
+    "separator",
+    "comma",
+    "and",
+    "natural-language",
+    "ja",
+    "japanese",
+    "browser",
+    "client-side"
+  ],
+  "dependencies": {
+    "array-to-sentence": "^1.1.0",
+    "object-assign": "^4.1.0"
+  },
+  "devDependencies": {
+    "@shinnn/eslint-config": "^2.3.0",
+    "bower": "^1.7.9",
+    "eslint": "^2.12.0",
+    "istanbul": "^0.4.3",
+    "require-bower-files": "^3.0.0",
+    "require-from-string": "^1.2.0",
+    "rollup": "^0.31.2",
+    "rollup-plugin-node-resolve": "^1.7.0",
+    "tap-spec": "^4.1.1",
+    "tape": "^4.5.1"
+  }
+}
diff --git a/test.js b/test.js
new file mode 100644
index 0000000..00b984c
--- /dev/null
+++ b/test.js
@@ -0,0 +1,60 @@
+'use strong';
+
+const requireBowerFiles = require('require-bower-files');
+const requireFromString = require('require-from-string');
+const {rollup} = require('rollup');
+const rollupNodeResolve = require('rollup-plugin-node-resolve');
+const test = require('tape');
+
+global.window = {};
+requireBowerFiles({self: true});
+
+function runTest(arrayToSentenceJa, description) {
+  test(description, t => {
+    t.strictEqual(arrayToSentenceJa.name, 'arrayToSentenceJa', 'should have a function name.');
+
+    t.strictEqual(
+      arrayToSentenceJa(['a', 'b', 'c']),
+      'a、bおよびc',
+      'should join all elements of an array and create a string.'
+    );
+
+    t.strictEqual(
+      arrayToSentenceJa(['右', '左', '上', '下'], {
+        separator: 'と',
+        lastSeparator: '、そして'
+      }),
+      '右と左と上、そして下',
+      'should override separators via options.'
+    );
+
+    t.throws(
+      () => arrayToSentenceJa('foo', null),
+      /^TypeError.*foo is not an array\. Expected an array\./,
+      'should throw a type error when the first argument is not an array.'
+    );
+
+    t.throws(
+      () => arrayToSentenceJa([], {separator: false}),
+      /^TypeError.*false is not a string\. `separator` option must be a string\./,
+      'should throw a type error when `separator` option is not a string.'
+    );
+
+    t.throws(
+      () => arrayToSentenceJa([], {lastSeparator: true}),
+      /^TypeError.*true is not a string\. `lastSeparator` option must be a string\./,
+      'should throw a type error when `lastSeparator` option is not a string.'
+    );
+
+    t.end();
+  });
+}
+
+rollup({
+  entry: require('./package.json')['jsnext:main'],
+  plugins: rollupNodeResolve({jsnext: true})
+}).then(bundle => {
+  runTest(require('.'), 'require(\'array-to-sentence-ja\')');
+  runTest(global.window.arrayToSentenceJa, 'window.arrayToSentenceJa');
+  runTest(requireFromString(bundle.generate({format: 'cjs'}).code), 'Module exports');
+});