An arranged marriage by his mother makes Shinji the fiancée of Miyabi Kagurazaki, who has been adopted by the wealthy Sakuraba family in order to fulfill the pledge.

When Shinji runs away from Tokyo-3 he ends up in a temple where a magic spirit turns him into a twin of Kaoru Hanabishi. This causes problems for several people, especially when he meets the real Kaoru and his harem. Shinji/Tina.

When Shinji moves away from Tokyo-3, he arrives in Kyoto, enrolls in college, and meets the clumsy but kindhearted Taeko Minazuki.