In the present day, Gods and Demons coexist with Humans after the doors between their respective worlds opened. Tsuchimi Rin is an ordinary high school student at Verbena Academy, living peacefully with his childhood friend Kaede. Unexpectedly, the King of Gods, the King of Demons, and their families move in as Rin's next-door neighbors. It turns out that Sia, the daughter of the Gods, and Nerine, the daughter of the Demons, are both deeply in love with Rin, having met him in the past. Between his playful friendship with upperclassman Asa and his encounter with the silent but cute Primula, Rin has his hands full dealing with the affections of all these girls. Based on the eroge by Navel.