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.
Wait! I take it back!
Ah, ich nehm’s zurück!
¡Espera! ¡Me retracto!
- Calma! Retiro o que eu disse!
- Não quero saber.