Artist, illustrator, mangaka. The creator of the work Sakusei Dungeon Kouryaku ni Mukanai Jimiko no S Kyuu Dosukebe Status.
https://www.pixiv.net/users/31423
https://www.pixiv.net/stacc/f4u_jp
https://twitter.com/f4u_jp
https://twitter.com/intent/user?user_id=45094681
https://f4u.fanbox.cc
https://www.pixiv.net/fanbox/creator/31423
http://www.amazon.co.jp/F4U/e/B004LWB7SM
https://www.dlsite.com/maniax/circle/profile/=/maker_id/RG02591.html
http://ja.wikipedia.org/wiki/F4U_(漫画家)
