Kakeru Sengoku

"Best of Chicken." Born on May 9th, height 170 cm, a third-year student in class 3-3. The student council president at Katagiri High School. He acts tough but is actually timid, and has never been able to stand up to Hori since childhood. He is an excellent student who tops almost all subjects, but he can't surpass Miyamura in physical education, continuously missing out on being the top student in all subjects. Initially, due to his position as president, he showed a strong attitude towards Hori, but as he deepened his interactions with Miyamura and others, his facade began to peel away.

He is self-conscious about his slim physique, and shares a strange bond with Miyamura, who is also slim. He layers his clothes to hide his body shape, making it impossible for him to wear just a shirt even in summer. During swimming classes, he refuses to wear a swimsuit to the extent that he negotiates with Yasuda to observe instead (he says he'd rather face a public guillotine than wear a swimsuit). Due to his lack of physical strength, his movements in physical education are sluggish. Among his friends, he sends the cutest emails. He also has a cute side, such as calling animals with honorifics and occasionally speaking in a feminine manner.

He started dating Ayasaki in his first year of high school and is also close to Kono. He dislikes insects, except for dragonflies, and seldom visits Ayasaki's house because she likes insects. When he fights with his girlfriend, he is hurt by being called "skinny chicken" while crying. He hadn't been able to talk to his strict father about his relationship with Ayasaki, but he told him about it after graduation.

He was initially awkward with Yanagi, but after opening up, he loses his composure around him. While he envies Ayasaki's proactive attitude towards Yanagi, Sengoku's behavior might seem overly protective and excessive from an outsider's perspective. He has a loft in his room, and Miyamura and others often stay over. He resembles his father in appearance and his mother in voice. He appears in Ishikawa's dreams after Miyamura and is named "Nyangoku." His hair is red. He ranked third in the popularity poll.