Ep. 30: Ko recuerda la muerte de Wakaba al ver a una chica que se le parece y que lo invita a un restaurante.

30

Upon seeing the girl who looks like Wakaba, Ko remembers the summer Wakaba died. In a flashback, scenes of Wakaba from the first three episodes are shown, leading up to her death. In the present, the girl invites him to come to the restaurant when it opens. (Source: Wikipedia)