Rui and Tsukasa are both in high school, Rui was a nasty person and a bully. Many people were terrified of the people Rui hung out with.

Tsukasa was "a beautiful boy, who didn’t judge anyone". He was well-liked by his peers. His attractiveness, compassion, and kindness won the girls over.

Because of this, there was always rivalry between Tsukasa and Rui. They hated each other and often got into small arguments.

One day, Rui and Tsukasa got seated next to each other...