Yuuki has a crush on Kaori, a girl who loses her memory of all her friends every Monday morning. Each week he befriends her again, trying to draw her out of her defensive shell. Each week she remembers him more quickly. And instead of always hiding her condition, she becomes more willing to open herself to new friendships. Nice progress is made in the characters' relationships, but the cause of her peculiar amnesia is still a mystery. ( )