You can edit almost every page by Creating an account. Otherwise, see the FAQ.
This page was kept on Wikipedia check : https://ja.wikipedia.org/wiki/%E6%96%87%E4%BA%AC%E5%8C%BA%E7%AB%8B%E6%9F%B3%E7%94%BA%E5%B0%8F%E5%AD%A6%E6%A0%A1 https://ja.everybodywiki.com/%E6%96%87%E4%BA%AC%E5%8C%BA%E7%AB%8B%E6%9F%B3%E7%94%BA%E5%B0%8F%E5%AD%A6%E6%A0%A1?action=history