Artist.
Japanese name: ふくじゃく or 腹弱 (Fukujaku)
The other name: ふく (Fuku)
https://www.pixiv.net/users/10314563
https://www.pixiv.net/stacc/jakufukujaku
https://twitter.com/whatischii
https://twitter.com/intent/user?user_id=952197265837367296
https://sketch.pixiv.net/@jakufukujaku
https://ask.fm/jakumachimachi
https://twitter.com/jakumachimachi