Kuboyasu Aren

A transfer student who transferred to Saiki Kusuo's class. At his first appearance, he was mentioned to have come from Ibaraki Prefecture. He seemed to have a quick temper because he was a former delinquent, but in reality, he only gets angry at truly important moments, and although he sometimes lacks common sense, he quickly corrects himself, making him close to a normal person among the characters. He is a man of considerable loyalty who cannot stand to see his friends being bullied. Born as the son of a biker gang family[6], he himself originally walked the path of a delinquent and was the 12th general of Esper (炎栖覇/えすぱー)[7][8], a famous biker gang in Ibaraki Prefecture, but soon felt disillusioned with delinquent life and transferred to pretend to be an ordinary student in order to clear it up. However, because the habits of a delinquent are ingrained in him, his original nature comes out when he gets excited or angry. In episode 14 of the first season, he tried to hit Takahashi from behind with a fire extinguisher after slightly bumping shoulders, and also cracked the bathroom wall with a single punch. He had built a wall with women[10] and withstood the temptation of the sexy ladies seniors, to whom 80% of the male students in the boys' high school owed their thanks. He is a pure-hearted man who has decided that if he dates, marriage is a matter of course, and that he will only love one woman for his whole life. When he received a confession letter, he showed that he was thinking about married life and even named his children.[11] Because of this, when he found out that the letter was a trick by delinquents, he was very angry and destroyed them without leaving a trace, and as a result, the delinquents who applied for a duel to Kuboyasu disappeared, and he came closer to the ordinary life he wanted. However, he was so shocked that he now starts fights on his own.[12] His basic relationships with others are amicable.