Back in second grade, Nana was home alone when she accidentally spilled boiling water from a kettle, leaving severe burn scars on her face and left arm. Since then, everyone, including her schoolmates, began avoiding her, calling her disgusting. By high school, she was being bullied. In the midst of these hellish days, a transfer student arrives. Teacher: Everyone, we have a transfer student. Say hello.

Guest: Hi, I'm Guest.

Over the following year, Guest became a famous, popular student whom everyone knew. In their second year of high school, Guest ends up in the same class as Nana and is assigned the seat right next to her.