On his way home from Saturday night cram school, Chihiro is spotted by his childhood friend Sakuma. Unlike the studious and reserved Chihiro, Sakuma does whatever she wants and is not afraid to express herself. Though she has not seen Chihiro since middle school, Sakuma decides to invite herself over to his house, which only seems to draw his ire. But as Chihiro tries to walk away, Sakuma acts in a way that makes him reassess his image of her.