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!
When Uryu sees a different name on Yae’s driver’s license, the same name as a girl from his past, he decides to get to the bottom of it while on a late-night drive to Inari Shrine with the sisters and Makoto, Yae’s best friend. However, Makoto chews him out for snooping around. Then, in the middle of their midnight hike, Yae suddenly takes a tumble down Mt. Inari and goes missing!! Will Uryu be able to find her?! And, what is the truth behind the name “Reiko Ichijoji”?!