Rihito Sajou is one of the main protagonists in the anime and manga series 'Doukyuusei' (Classmates). A quiet, studious, and somewhat introverted high school student, Rihito excels academically and is often perceived as reserved and serious by his peers. Throughout the story, he forms a deep and transformative relationship with Hikaru Kusakabe, which challenges and helps him to open up emotionally. Sajou's character arc explores themes of self-discovery, love, and personal growth as he navigates the complexities of his feelings and identity.