Yu Haibara is a minor character in the anime series Jujutsu Kaisen. He was a student at Tokyo Metropolitan Curse Technical College and a classmate of Kento Nanami. Despite his brief appearance, Yu is remembered for his kind-hearted and optimistic nature. He often encouraged his classmates and brought a sense of positivity to the group. His untimely death during a mission deeply impacted Nanami, influencing his perspective on life and his approach to being a Jujutsu Sorcerer. Yu's legacy continues to resonate with those who knew him.