Classmates Rin, Maria, and Kurumi. A realistic portrayal of school life from the perspectives of these three girls. Hajime, Rin's childhood friend who has feelings for her. Kurumi, who is in love with Hajime, boldly seduces him using her body. Meanwhile, Hajime's true feelings belong to Rin, a secret held by their homeroom teacher, Kozuka, who treats Rin like a relaxed plaything under his control. Maria, the serious and diligent class president, admires Rin while quietly living her peaceful days under Kozuka's influence. Interwoven emotions unfold into a complex, realistic drama within the school. A delicate, everyday-style work that carefully depicts the crossing paths of their feelings.