diff --git a/LICENSE b/LICENSE
index f67746b8..c933c439 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,2 +1,16 @@
-本製品をインストール、または使用することによって、お客様は利用規約（
-https://b00st.io/regulations.html）より拘束されることに承諾されたものとします。利用規約に同意されない場合、Boostnoteは、お客様に本製品のインストール、使用のいずれも許諾できません。
+Boostnote - the simplest note app
+
+Copyright (C) 2016 MAISIN&CO.
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
diff --git a/contributing.md b/contributing.md
new file mode 100644
index 00000000..fc85a7df
--- /dev/null
+++ b/contributing.md
@@ -0,0 +1,16 @@
+# Contributing to Boostnote
+
+> This is a temporary document.
+
+It is first time to maintain OSS project for me(Rokt33r). So, I want to watch what's going on here.
+
+**This means you can do whatever you want until I ask to stop it.**
+
+But I want to make only one thing sure.
+
+**If you make a pull request, It means you agree to transfer the copyright of the code changes to MAISIN&CO.**
+
+This is because our team want to have an option to change LICENSE of this app.
+> It doesn't mean Boostnote will become a paid app. If we want to earn some money, We will try other way, which is some kind of cloud storage or Mobile app integration.
+> We thought this is needed to replace the license with much freer one(like BSD, MIT).
+
diff --git a/readme.md b/readme.md
index 61565ae9..2d3b6169 100644
--- a/readme.md
+++ b/readme.md
@@ -1,8 +1,8 @@
 # Boostnote
 
-Hack your memory
+Simple note app
 
-## Develope
+## Develop
 
 1. turn on HMR server
 
@@ -18,8 +18,12 @@ npm run hot
 
 > `npm start` is using compiled scripts. see [Build](#Build) to compile scripts.
 
+
 ## Build
 
+> '3. Codesign' and '4. Create' installer are needed to deploy this app.
+> You can skip these steps.
+
 1. Compile scripts
 
 compile all browser stuff(Javascript, Stylus).
@@ -78,15 +82,18 @@ grunt zip:osx
 - Webpack
 ... check [`package.json`](./package.json)
 
+
 ## Codestyle
 
 [![js-standard-style](https://cdn.rawgit.com/feross/standard/master/badge.svg)](https://github.com/feross/standard)
 
 ## Author
 
-[Rokt33r(Dick Choi)](https://github.com/rokt33r)
+[Rokt33r(Dick Choi of MAISIN&CO.)](https://github.com/rokt33r)
 
-## License
+## Copyright & License
+
+Copyright (C) 2016 MAISIN&CO.
 
 [Check here](./LICENSE).