Edit
The author of Tsurumoku Dokushin Ryou.
URLs
- https://www.pixiv.net/users/8019142
- https://www.pixiv.net/stacc/eisaku11
- https://twitter.com/EISAKUSAKU
- https://twitter.com/intent/user?user_id=123579205
- https://wmwwxj3z.fanbox.cc
- https://www.instagram.com/eisaku_kubonouchi/
- http://www.amazon.co.jp/窪之内-英策/e/B004L4LXBG/
- http://www.mangaupdates.com/authors.html?id=1107
- http://en.wikipedia.org/wiki/Eisaku_Kubonouchi
- http://ja.wikipedia.org/wiki/窪之内英策
- https://www.animenewsnetwork.com/encyclopedia/people.php?id=66237
- http://p.twipple.jp/user/eisakusaku