Diabolik Lovers Simulator

Shu Sakamaki is the first-born and eldest of the Sakamaki brothers. He and his brother Reiji are sons of Beatrix, Karlheinz's second wife. He has wavy blond hair and blue eyes. He is always seen with his MP3 and headphones around his neck, even when bathing. He wears a white dress shirt, beige sweater, and school blazer draped over his shoulders, paired with black trousers and brown dress shoes. He is always seen sleeping anywhere.

Reiji Sakamaki is the second son of the Sakamaki family. Like Shu, he is the son of Beatrix, Karlheinz's second wife. Reiji is always dressed formally, with shirts and ties tied perfectly to match his serious personality. He wears the standard school uniform: black jacket, pants, and dress shoes, accentuated by a red velvet vest and a matching tie. In More Blood, he wears a black military-style coat over a white dress shirt.

Ayato Sakamaki is the fifth son of the Sakamaki family. Along with Laito and Kanato, the triplets, he is the son of Cordelia, daughter of the Demon Lord and Karlheinz's first wife. Ayato has reddish hair, lighter at the tips, styled messily, and emerald green eyes. When not at school, he often wears a white shirt with brown trim, a black leather jacket, a brown scarf, and blue jeans.

Kanato Sakamaki is the fourth son of the Sakamaki family and one of the triplets born to Cordelia. He has bright lilac eyes and hair, inheriting a few white tips from his father. He never goes anywhere without his teddy bear. He has large bags under his eyes, likely from insomnia, and bears a strong resemblance to Azusa.

Laito Sakamaki (逆巻 ライト, Sakamaki Laito) is the third son of the Sakamaki family. Laito, along with his triplet brothers Ayato and Kanato, is the son of Cordelia, Karlheinz's first wife. He has shoulder-length reddish-brown hair, pale skin, and like his brother Ayato and his mother Cordelia, bright green eyes. He has a small beauty mark near his mouth and wears a double-hoop earring in his left ear. His uniform consists of a white shirt, a black tie, and the standard school jacket.

Subaru Sakamaki (逆巻 スバル, Sakamaki Subaru) is the sixth and youngest son of the Sakamaki family and the only child of Christa, Karlheinz's third wife. He has silver-white hair with pinkish undertones and red eyes. He is usually seen wearing a black jacket with black jeans and a silver key necklace. He also wears a dark red shirt cinched with a brown belt, with the hem being shredded. He wears his school uniform differently than his brothers, often leaving his jacket unbuttoned.