Envious of Sakamoto's popularity, three delinquents, Atsushi, Mario and Kenken tried multiple attempts to bully Sakamoto but failed miserably. In their recent attempt, they accidentally put on a fire on the school laboratory until Sakamoto's quick-thinking skills called Kakuta, a nearby teacher to put out the flame. With Sakamoto taking the blame for them, the three delinquents started a liking towards him.