Species: Dhampir (A half-human, half-vampire hybrid. Only one eye is red, which is very rare.) Male, 175cm, 16 years old. He appears blunt and somewhat clumsy at communicating with others, but after meeting the members of O★Z, his expressions have become more varied and he has brightened up, even bickering with Robin. Although he looks fragile on the outside, he has a strong inner core. 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, which can seem cold at times, and the fact that he only says what is necessary make him prone to misunderstandings. He somehow became the leader of O★Z, but he serves as the practical leader and mentor, supporting O★Z on behalf of the inexperienced Yuki Ange. He is the vocalist of the legendary band ECLIPSE, which 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 came to Japan recklessly and has nowhere to go. 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 has now accepted vampires and become his current self. He is now 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 free-spirited, unbound by anything. A whimsical and innocent genius. He has incredible social skills. Among the O★Z members, he seems 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 known to everyone in the field. 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 actually 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.