16-year-old super-studier Nagi Umino, second-year student at the Megurogawa Academy high school, was switched at birth. On his way to a dinner to meet his birth parents, he accidentally meets the brash, outspoken, Erika Amano, who is determined to make Nagi her fake boyfriend as she never wants to actually marry. But once Nagi makes it to dinner, he finds his parents have decided to resolve the hospital switch by conveniently having him marry the daughter his birth parents raised…who turns out to be none other than Erika herself!
“I wanna get along with you, Nagi.” Nagi is shocked to hear these words from his blood-related older brother, and their reunion will set the wheels of destiny in motion! Meanwhile, the battle for the top of the inn rankings is in full swing, and the key to victory lies with the pop princess Taylor Stuart and her sudden visit to Hakone…