An unflappable girl and a cast of lovable male roommates at a boardinghouse create bonds of friendship and romance. When Ten moves out of her parents' home in the mountains to live in a boardinghouse, she finds herself becoming fast friends with her male roommates. But can love and romance be far behind? Chiaki and Ten pretend they're dating to dissuade Rei, Riku's younger brother, from continuing to bother her. But Chiaki believes that Riku still has feelings for Ten and tries to bring them together.