Shuu Sakamaki is a central character in the anime series Diabolik Lovers. He is the eldest son of the Sakamaki vampire brothers, known for his apathetic demeanor and love for classical music. Often seen with headphones, Shuu prefers solitude and tends to avoid conflict, yet he harbors a mysterious past that gradually unfolds throughout the series. Despite his indifference, Shuu occasionally reveals a deeper, more caring side, especially towards Yui Komori, the protagonist, making him an intriguing and complex character.