Hirota Kaoru — https://www.pixiv.net/users/1966177

Also known as K2Corp

Fuzzy Pain Maria-sama ga Miteru Doujin released Jul 3 '05 Romance School life Sei x Youko Yuri

Treasure Maria-sama ga Miteru Doujin released Aug 18 '06 Youko x Yumi Yuri

More Than Friends, Less Than Lovers? Kamiina Botan, the Drunken Form is a Lily Flower Doujin released Sep 8 '26 Botan x Ibuki Yuri