https://twitter.com/gekiko_superior
https://twitter.com/intent/user?user_id=1460466253924282368
https://www.mangaupdates.com/author/ik438h9
https://en.wikipedia.org/wiki/Takayuki_Yamaguchi_(artist)
https://ja.wikipedia.org/wiki/山口貴由
https://www.animenewsnetwork.com/encyclopedia/people.php?id=89577
https://myanimelist.net/people/2635