Mahiro, a school girl, meets Shihori, a mom who is good at drawing, at her best friend's house for the first time. Mahiro is called to be a model and is kissed while her best friend is away. At first, she refused, but she couldn't forget the strange feeling she had never experienced before, so she went to see Shihori again. The two are fascinated by the beautiful forbidden relationship that they can't even say to their best friends.
