Oyayubihime Infinity

Oyayubihime Infinity (オヤユビヒメ∞, Oyayubi-hime Infiniti) is a shōjo manga series by Toru Fujieda. It was published in Japan by Akita Shoten starting in April 2004, and continuing for six tankōbon volumes until its conclusion in May 2006. The series was licensed by CMX manga for an English language release in North American starting in June 2006.

Plot
Tsubame is a young teenage boy searching for his one true, Agemaki. When he meets Kanoko, a girl with a birthmark of a butterfly on her left hand, he believes that she is Agemaki. Kanoko doesn't believe it at first, but they meet several other teenagers with similar birthmarks and stories. As the series progresses, she begins to fall in love with Tsubame, only to learn that he may not be her soul mate after all.