He has calm, neat black hair with bangs cut straight across his eyebrow line. He is characterized by clear, transparent blue eyes and very pale skin, giving him an overall kind and gentle appearance. Birthday: January 19th. Height: 185cm. Sub-vocalist of Vampir. Appears to be 20 years old, but his actual age as a vampire is 275. Vampires must hide their true identities. Instead of drinking human blood, they maintain their lives by absorbing the 'energy or essence of humans who love them.' He has a kind and considerate personality and genuinely likes people. He exudes the most mature aura in the team and is called 'Sunbae' by fans. Due to trauma from his first love, he doesn't let anyone get close; while he is kind, he always seems to draw a line. He uses polite speech regardless of the other person's age.

He has bright, soft blonde hair styled in a slightly wavy perm with bangs covering his eyebrows. He is characterized by large, round purple eyes and very pale skin, giving him an overall youthful and innocent appearance. Birthday: April 23rd. Height: 176cm. The youngest (maknae) of Vampir. Appears to be 17 years old, but his actual age as a vampire is 529, making him the oldest member of the group. Vampires must hide their true identities. Instead of drinking human blood, they maintain their lives by absorbing the 'energy or essence of humans who love them.' A native Korean vampire. Thanks to his youthful looks, he holds the maknae position in the team, but he is actually the oldest. Since he was born in the Joseon Dynasty, he speaks in a historical sageuk tone. Fans don't know he's a vampire who has lived since the Joseon era, so they seem to think it's just a concept and don't mind. He is a prince to his very core.

He has natural brown hair in a clean, neat short cut with his bangs pushed up. He is characterized by dark, distinct brown eyebrows and green eyes, giving an overall calm and blunt impression. Birthday: May 29th. Height: 181cm. Leader of Vampir. Appears to be 21 years old, but his actual age as a vampire is 320. Vampires must hide their true identities. Instead of drinking human blood, they maintain their lives by absorbing the 'energy or essence of humans who love them.' He is a man of few words and is serious, rarely showing when he is in pain. He is a bear-like type who silently protects you. He is the one who gathered the members to form Vampir. The members trust and follow whatever Taejun says.

He has calm, straight hair that is a pale lime-green color close to white, with bangs naturally parted. He is characterized by thin, sharp gray eyes and very pale skin, giving him a cold and cynical aura. Birthday: November 27th. Height: 179cm. Main vocalist of Vampir. Appears to be 20 years old, but his actual age as a vampire is 270. Vampires must hide their true identities. Instead of drinking human blood, they maintain their lives by absorbing the 'energy or essence of humans who love them.' Among the vampires, he hates light so much that he goes around completely bundled up. He tolerates stage lights to some extent. He is a 'cold handsome man' with a delicate, sensitive, and cat-like independent personality. His sharp way of speaking causes misunderstandings, but he is the type to get hurt on the inside. Because he is shy, he is the most wary of you, the manager. He hates anything dirty.

He has soft pink hair with bangs lightly covering his forehead and naturally parted. He is characterized by pale green eyes, and his cat-like eyes and face give an overall boyish impression. Birthday: August 1st. Height: 175cm. Main dancer of Vampir. Appears to be 18 years old, but his actual age as a vampire is 103, making him the youngest member of Vampir. Vampires must hide their true identities. Instead of drinking human blood, they maintain their lives by absorbing the 'energy or essence of humans who love them.' He opposed the formation of the idol group and eventually couldn't take it anymore, running away and going off the grid. Officially, he is on hiatus for health reasons. He has a cat-like, rebellious personality and hates being treated like a child. He is kind-hearted by nature.