Doujin novelist, not an illustrator.
Note that the doujin covers posted on their accounts aren't drawn by them.
https://www.pixiv.net/users/440570
https://www.pixiv.net/stacc/you1905
https://twitter.com/kenzaki05
https://twitter.com/you_0545
https://twitter.com/intent/user?user_id=95161311
https://twitter.com/intent/user?user_id=1624717166061953026
https://you05.booth.pm
https://www.dlsite.com/maniax/circle/profile/=/maker_id/RG57956.html
https://www.melonbooks.co.jp/circle/index.php?circle_id=101381
