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.
Senpai, you have bags under your eyes.
Senpai, du hast Ringe unter den Augen.
Tienes ojeras.
Senpai, você está com olheiras.