diff --git a/ruby.js b/ruby.js
new file mode 100644
index 0000000..aefd258
--- /dev/null
+++ b/ruby.js
@@ -0,0 +1,19 @@
+/*
+ruby.js: A filter for Hexo to generate ruby chracters(ルビ). Place this file in /scripts/ruby.js.
+========================================================================
+Author: kuanyui(azazabc123[at]g~~~m~~~a~~~i~~~l[dot]com), Yoxem <yoxem.tem98[ A T ]nctu.edu.tw>
+Date: 20180730
+License: WTFPL 1.0
+========================================================================
+The string in article:
+    {rb|機巧少女|machine doll}
+Will be converted to:
+    <ruby><rb>機巧少女</rb><rp>[</rp><rt>machine doll</rt><rp>]</rp></ruby>
+*/
+
+hexo.extend.filter.register('post', function(data, callback) {
+	var reRb = new RegExp('\\{rb\\|(.+?)\\|(.+?)\\}', 'g');
+	data.content = data.content.replace(reRb, '<ruby><rb>$1</rb><rp>[</rp><rt>$2</rt><rp>]</rp></ruby>');
+	// callback(null, data);
+    return data;
+});