Kento Miura is a 16-year-old student in Sawako Kuronuma's second-year class at Kitahoro High School. Standing 181 cm tall with blonde hair and brown eyes, he has blood type A and a birthday on February 6. Seated next to Sawako in class, he develops an interest in her, inadvertently causing Shota Kazehaya to perceive him as a romantic rival and experience jealousy.
Part of the school's social circle and known for his interest in girls, Kento interacts extensively with Ayane Yano. After Ayane's relationship with Mogi ends due to his insincerity, Kento comforts her and develops a genuine crush. He approaches Ayane sincerely, moving her despite her initial lack of romantic feelings. Acknowledging his earnestness and emotional support during her self-doubt, Ayane agrees to date him.
During the school trip to Okinawa in Season 3, tension arises in Kento's relationship with Ayane. She begins avoiding him afterward, indicating unresolved emotional complexities in their dynamic. This occurs alongside broader relationship struggles within their friend group, including Chizuru Yoshida's difficulties with Ryu Sanada and Sawako's challenges with Kazehaya. Kento remains integrated into the group's social fabric, his interactions contributing to themes of insecurity and young romance.
His role evolves from a brief romantic interest in Sawako to a supportive figure for Ayane, highlighting his persistent and sincere approach to relationships within the ensemble cast.