Futari no Himitsu Mangaふたりのヒミツ。; 两个人的秘密; Futari no Himitsu.; Our Secret: What Makes Two of Us
From Sapphire Sky: Saijou Kiki is a model and child star, but with the release of her new commercial, her popularity skyrockets. At school, she harbours feelings for Takumi-kun... but she somehow ends up kissing Teppei, his friend?! And what's more, they've switched bodies due to some sort of old legend?!