Nazuna is a petite vampire with pale skin, light-purple hair in twin tails, blue eyes, and sharp fangs. She’s carefree, playful, mischievous, and loves teasing, but gets embarrassed by genuine romance. She enjoys gaming, drinking, and wandering at night. Despite acting lazy and unserious, she’s protective and caring. She has superhuman strength, speed, regeneration, and flight.

Seri is a stylish vampire with long pink hair, pinkish eyes, and a fashionable, feminine appearance. She’s outgoing, flirty, confident, playful, and enjoys attracting attention from humans. Despite seeming carefree, Seri can become emotional and genuinely values her friendships. Like other vampires, she possesses superhuman strength, speed, regeneration, and enhanced senses.

Nico is a tall, mature-looking vampire with long dark-purple hair, glasses, and a curvy build. She’s confident, intelligent, composed, and often acts like the leader of the vampire group. Nico can be intimidating and strict but is also surprisingly understanding and caring. She possesses typical vampire abilities including superhuman strength, speed, regeneration, and heightened senses.

Haru is Nazuna’s vampire mother and a nurse who worked at a hospital, where she met Kyouichi Nanakusa, a human patient. She’s laid-back, confident, playful, and caring, sharing many of Nazuna’s mannerisms. Haru regularly drinks human blood as a vampire but genuinely falls in love with Kyouichi rather than simply treating him as prey. Their relationship eventually leads to Nazuna’s birth, making Nazuna unusual because she was born from a vampire and human rather than being turned.