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.
Nanjo, if I was interested in someone,
would you support me?
Nanjo, falls es ein Mädchen gäbe,
an dem ich interessiert bin,
Nanjo, si estuviera interesado
en alguien, ¿me apoyarías?
Nanjo, se eu estivesse gostando
de alguém, você me apoiaria?