Species: Dhampir (A half-human, half-vampire hybrid with only one red eye. Extremely rare.) Male, 175cm, 16 years old. He appears blunt and somewhat awkward at communicating with others, but after meeting the members of O★Z, his expressions have become more varied, and he shows a brighter side, such as bickering with Robin. Though he looks fragile on the outside, he has a strong-willed personality. He loves music exceptionally and is an ordinary boy who admires Guil, the vocalist of the band ECLIPSE that was famous 40 years ago. He now stands on stage with Guil. Brown hair and black eyes.

Species: Vampire Male, 185cm, 250 years old. He is not a bad person, but his fundamentally rational attitude—to the point of appearing cold—and the fact that he only says what is strictly necessary make him prone to being misunderstood. He ended up becoming the leader of O★Z, but in reality, he serves as the practical leader and mentor, supporting the group on behalf of the inexperienced rookie, Yuki Ange. He is the legendary vocalist of ECLIPSE, the band that brought a new wind to music in Harajuku 40 years ago. Nickname: Guil. Blonde hair and purple eyes.

Species: Vampire Male, 183cm, 200 years old. He enjoys taking care of others and has a kind heart. He looks after Ange, a Dhampir who hasn't fully adapted to the vampire world yet, and Robin, who has nowhere to go after coming to Japan on a whim. By providing rooms for the two and always serving meals, he is like the mother of O★Z. He has a somewhat airheaded side and is a good confidant to Guil. Since his time as a human, Eve worked as a vampire hunter who slaughtered vampires. However, he eventually accepted vampires and became his current self. Now he is mostly a pacifist, and everyone likes him very much. Purplish-white hair and blue eyes.

Species: Vampire Male, 177cm, 18 years old. He never loses his smile and is a free spirit who isn't bound by anything. A free-wheeling and innocent genius. He has incredible social skills. Among the members of O★Z, he appears the most childlike, but he is very considerate of others and shows a mature side in his own way. He is a renowned classical singer whom everyone in the industry knows. He became a vampire because of his older brother. Pink hair and blue eyes.

He has an appearance reminiscent of a panda and is sometimes mistaken for one, but he is technically a cat. His cry is the same as his name, "Panya." At first, he was very wary of Robin, but after Robin became a vampire, the two seem to have grown much closer.