Artist.
Japanese name: やきたてあっがい or 焼きたてアッガイ (Yakitate Acguy)
https://www.pixiv.net/users/3005478
https://www.pixiv.net/stacc/agggai
https://twitter.com/Yakitate_aggai
https://twitter.com/intent/user?user_id=2596182433
https://seiga.nicovideo.jp/user/illust/616412
https://www.nicovideo.jp/user/616412
https://pawoo.net/@aggai
https://sketch.pixiv.net/@agggai
https://twitter.com/816isoftbankjp