Main story: Kouhei is the older brother of a pair of twins, Shion and Aoya. The twin love kouhei very much to the point where they would ruin Kouhei's love life multiple times. They confessed and got together with Kouhei.
Side story: Imai got dragged to a transvestite bar (Cross dress) by his coworker. He then got pressured into wearing a dress by the employees there. He got hard and got saved by Hyoudo, a senior from school. The next day, he started working at the shop to help the senior only to be sexually harrassed by his company mate. Hyoudo once again saved him and they went back to his house. Ending as expected
Uchi wa Futago de Teippai!