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.
Just recently. I wasn't certain,
but I grew suspicious from your attitude.
Seit Kurzem erst.
Ich hatte keinen Beweis, aber
Hace poco. No estaba seguro,
pero tu actitud me hizo sospechar.
Há pouco tempo.