Kirei ni Shiteyo

Kirei ni Shiteyo summary: The janitor is the only person who doesn't give Dai Hara trouble, as he has a deep-seated hatred for individuals, viewing them all as problematic. Dai's time in middle school was marked by relentless bullying and harassment, leading him to become a rebellious high schooler. Although his attitude and behavior may suggest otherwise, his animosity toward others is all-encompassing.