Naotatsu is staying at his uncle's house to commute to high school. However, on the pouring rainy day, he is picked up at the nearest station by a grim-faced adult stranger, Sakaki-san. The house he was taken to was a strange share house where Sakaki and the other residents were all eccentric. While living together, Naotatsu begins to have a faint crush on Sakaki-san, who spends her days in an indifferent manner. However, there is an unexpected fate between himself and Sakaki-san, who declares that she is "not interested in romance." --An unexpected encounter on a rainy day moistens their dry hearts.
