Summary
Known as Pin, Arai Kazuichi is a towering figure standing at 1.93 meters and weighing 88 kilograms, born on July 25 under the Leo sign with a B blood type. He operates under the self-proclaimed life philosophy that he is the best, displaying an attitude of supreme arrogance that defines his role as the temporary homeroom teacher for the gang's class. While the students and staff refer to him by his nickname, Sawako adheres to formalities and addresses him as Arai-sensei. He assumes the position after rumors suggest the previous teacher fell ill following an incident where he forced Sawako to complete his work during the summer holidays. Arai serves as the coach for the school baseball team and is a devoted fan of the sport. His history is tied to Shota’s family, having played in a league team managed by Kazehaya’s father, which allows him to recall Shota from childhood. He frequently uses this connection to threaten Shota with the exposure of embarrassing childhood stories. Arai also admits to a habit of interrupting others and bestowed the name Pedro Martinez upon the puppy found beside the river by Kazehaya and Sawako.
