Uchi wa Futago de Teippai!
Complete | KAMIYA Memo | 2014 released
As the eldest son for the Kadokura family, Kouhei's biggest worries are his younger twin brothers, Aoya and Shion. Despite always being foiled in love by his younger brothers, the virgin Kouhei has finally landed himself a matchmaking session. But, saying "our true desire is you, big brother," the twins pounce and teach Kouhei how to feel good! Includes Kamakare oneshot.
Hitotsu Yane no Shita no Kedamono