Spin-off du doujinshi "Onii-chan wa oshimai!", cette histoire se concentre sur le jeune Minato, un personnage présent dans la série qui découvre son penchant pour les tenues féminines...
A reverse-role manga about a poor soul getting pounded by Linfa, a female martial artist. Despite their efforts, the protagonist seems to be no match against her chokeholds and powerful attacks executed by her steel-like thighs and ass!
Bad-mouthed and unsociable Tachibana falls head over heels for the handsome and kind Hasegawa who works at a local café. Tachibana finally gets to work alongside Hasegawa at the same café, but suddenly handsome rivals appear one after the other?!
The cyborg Jinsei Kaibara, exhausted by his harsh duties with Imperial Public Safety, in exchange for a vacation participated in a steamy procreation experiment with the werewolf Wantomo Tomoko -- with whom he is now steadily falling in love!
An official spin-off doujinshi to the "Oniichan wa Oshimai!" / "Oniichan's End" series. Contains three short comedy stories set in Mihari's research laboratory.