URLs

• https://twitter.com/kunimituyuji
• https://twitter.com/intent/user?user_id=1082172582088962049
• http://doujinshi.mugimugi.org/browse/author/5825/U-Jin/
• http://en.wikipedia.org/wiki/U-Jin
• http://ja.wikipedia.org/wiki/遊人
• https://www.animenewsnetwork.com/encyclopedia/people.php?id=84650
• http://www.u-jin.com