Hachiman Hikigaya is a fictional character from the light novel series Yahari Ore no Seishun Love Comedy wa Machigatteiru, also known as Oregairu. He is a high school student known for his cynical worldview and social isolation. Hachiman often observes the behaviors of his peers with a critical eye, leading him to develop a unique perspective on relationships and social dynamics. Despite his aloof demeanor, Hachiman is intelligent and resourceful. He becomes involved in the Service Club, where he helps fellow students with their problems. Throughout the series, Hachiman's character evolves as he navigates friendships, love, and personal growth.