Mukuton Kyouju to Soratobu Potato.
A book about having sex with a tiny cat-eared girl using a magic book you picked up
Original Doujins Series
Artist: Mukuton Kyouju to Sora..., Muku
A book about a small, big-boobed cat girl and her uniform
Original Doujins Series
Artist: Mukuton Kyouju to Sora..., Muku