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!
Asahi and her squad of fans are getting hyped up for the approaching All-Japan Relay! But when a letter addressed to Asahi and claiming to be from her birth father arrives, it causes a big fight between Uryu and Yae! And son, the whole history of her past before coming to the Amagami Shrine comes to light! Can Uryu come to accept that Asahi wants to shake off the bonds of her past and face forward to the future, wherever it may take her?