~I am a fantasy inventor~ I am a fantasy inventor~ I am modifying the girls from Boobs Keyboard Academy to have nipple-sensitive constitutions and making them cum hard! ! Azuki, Tsubaki Rika Isshiki Sara, Kashiwagi Konatsu, Ando Haruno, Iori Hinano, Nogi Chiharu, Miyanoki Shunka, Munakata Rena, Kish...