They met in the fall of their freshman year of high school.The top student Hitoshi Minase (Motoshima Junmasa), who is indifferent to others, accidentally witnesses a problem student in his grade, Haruki Harukawa (Kenshin Uemura), strangling his teacher behind the classroom building.He made up his mind to keep a distance from such people and never have anything to do with them.

Minase, who has entered the second grade, is assigned to the same class as Hirukawa. He spends happy school time with his congenial friends Shiba (Yuki Imai) and Nemoto (Miyajiki), and tries to avoid crossing paths with Hirukawa.

However, one day, on the way home from cram school, Minase heard the roar of a man on the roadside. He approached cautiously, only to find that it was Hirukawa who had collapsed after being beaten by his father.“Don't tell anyone” - Minase accidentally learned this secret and became unable to concentrate on his studies. He tried to keep a distance from Hirukawa as before, but on the contrary, Hirukawa continued to close the distance with Minase in school..

Two people shared a secret, and the world where they shouldn't have intersected began to quietly change.