His aunt is the custodian of a temple in which there is a stone according to local legend recalls the curse of twin sisters who fell in love the same man, and this not being able to choose for either died of grief becoming two small birds, and they say is the main reason the city has more twins than normal. And nozumo have to deal with the love of many twins, like the legend.
Well with these 5 pairs of twins living in the great adventure that is helping twins to live in the "real world" and realize the feelings of these beautiful twins, the end of the day you realize you can not live without any of them, and they realize they have to get the heart of Futami Nozomu cleanly.
Mates and childhood friends of Nozomu. During the anime also attend the same school. Both are secretly in love with Nozomu. Nursery had promised to marry both. Despite being very intimate with each other, keep their feelings hidden from them and everyone else.
In the course of history is explained how these twins have lived a comfortable life together in their house. The father travels a lot, and plays a butler to take care of their daughters. Are subjected to many tests, written by his father to enable them to live in society and live like normal students.
The younger sister of the series, live with Nozomu, the mother Miyabi and the Billy Goat. They are affectionate and Nomozu to claim him as a future husband, which makes Billy jealous.
Twin daughters of a veterinarian , helping his father in the clinic. Nozomu meets them when Billy brings to the vet because he ate a fax intended for that Nozomu is stuck in the throat.
The twins appear in larger series. Ai is the teacher responsible for the class of Nozomu, Kira, and Keisuke Yura, while Mai is the school nurse.
Twin girls who are the same in all but personality: Souju is mild-mannered and ill-bodied, whereas Sara is rougher in her speech and more energetic. Nozomu meets Souju while she was painting at the shrine, and Sara wanted him to be loyal to her. Sara herself has a love-hate relationship with Nozomu. They leave the city before the end of the series and come back at the end.