Uryu Kamihate has had a rough start to life, but plans to forget it all by achieving his dream-matriculating into medical school. But when he arrives at his new foster home, a working shrine, his dream of a quiet place to study goes up in smoke. Not only will he be living with the three beautiful, lively Amagami sisters-but he learns that he must marry one of them and take over the shrine!
It's my life, so I’ll live it for myself! Asahi suddenly announces her intention to leave Amagami Shrine and move to America! Uryu refuses to accept her decision and tries to oppose her, but he can’t contain her burning passion. As he reflects, he realizes it’s not Asahi who has changed, but himself… Then, just before the All-Japan Ekiden Championship relay race, Asahi’s running shoes come apart! Asahi and Uryu attempt to find replacements at a sporting goods store, only to be confronted by a shocking revelation from Asahi’s birth father!