Keiki Kiryu is a kind-hearted high school student surrounded by attractive girls. One day, he finds a love letter with no sender information, other than a pair of panties. Keiki begins his investigation by speaking to his senpai, Sayuki.
If she denies, she wins...
I'd have no choice but to back off.
Si lo niega, ella gana…
Se ela negar, ela ganha.
Não terei escolha senão recuar.