Trap x reverse trap, only neither knows the other's true sex.

"Until my brother returns the 500 yen, I will gladly become senpai's property as collateral!" One summer day, Akari Miyamae, his friend's younger sister, came to the apartment of Motomu Shiragi, a university...

Tarou, a hikkomori and self-described commu-disable (aka communication disabled), by chance meets a cute girl from China named Ronron, and instantly falls for her. The cute and funny mix of a socially inept boy...