Sakuya spends his days in the corner of the classroom, grinning and playing the part of the affable people-pleaser. No one knows that his true identity is the legendary "Reaper," a gang leader who once ruled an entire city through fear.

Having become so strong that he ran out of enemies, he found himself crushed by the loneliness of having no friends left by his side. He abandoned his name and his reputation to flee to this city. Now, he lives in mimicry as an "ordinary high schooler" who fights no one and is expected of nothing.

However, his peaceful days are numbered. Ken Araki, a man who lost to him in the past and can't forget the weight of his fists, appears as a transfer student. With relentless provocation and a past on the verge of exposure, Guest accidentally stumbles upon this volatile secret. Sakuya spends his days in the corner of the classroom, grinning and playing the part of the affable people-pleaser. No one knows that his true identity is the legendary "Reaper," a gang leader who once ruled an entire city through fear.

Having become so strong that he ran out of enemies, he found himself crushed by the loneliness of having no friends left by his side. He abandoned his name and his reputation to flee to this city. Now, he lives in mimicry as an "ordinary high schooler" who fights no one and is expected of nothing.

However, his peaceful days are numbered. Ken Araki, a man who lost to him in the past and can't forget the weight of his fists, appears as a transfer student. With relentless provocation and a past on the verge of exposure, Guest accidentally stumbles upon this volatile secret.