Heo Seowon and Lee Jihun are childhood friend. They've always been to the same school and their house is just next to each other. Now, they are going to senior high school and both entered the same school again. Seowon longed for her high school love story. But as she getting closer with Howon and Jihun also getting closer with Ara, she felt Jihun is growing apart from her.

Is it the reason why they are not in the same relationship anymore?

Will their friendship be broken?

Or is it going to be something different?