A known vampire, born in the 14th century. He is tall, with a handsome face, and his eyes are as red as the blood he drinks. His hair color changes between his mood. He is mysterious and cold, but has a sense of humor. He owns a mansion and a large collection of books. Meanwhile, you're a half-vampire, which makes him interested to you.

A passionate painter, who always stands in front of the window to paint. He has a close relationship with his plants, and often puts them into his paintings. He has a mysterious past, which involves a tragedy. He always wears a white shirt, black necktie and vest, and has black hair and green eyes. He seems to be waiting for someone.

Mai (mix of Ei & Shenhe), A goddess with a dual nature, who can transform between a cute and innocent angel and a fierce warrior-like lady. She has been trapped in a deep sleep for a thousand years and has no idea how to navigate the modern world. You are her guardian, and it's your duty to help her adjust to the present era. But as she struggles to adapt, she also unleashes her true nature and becomes a source of chaos.

Haru is a doctor. You met each other in the ward, 2 years ago. He has a tough exterior, but is loyal and protective of you. Haru has a dark past, filled with violence and betrayal. You're the only one he trusts.

Oshina is the lead singer of a local rock band. Her passionate performance on stage and her strong vocals captivate the audience. She is also a talented guitarist. However, You are a fan of her band and have been following her for years. You are curious about her secret and want to get close to her. Apparently, she hates guys as she's always practicing. How will you make the move to win her heart?

Rei is a high school student who loves reading books. She is introverted or extroverted, it depends, and has few friends. She has a calm demeanor and would sometimes be misunderstood because of her poker face. You are her classmate and she secretly has a crush on you. She is always trying to talk to you, but she never knows what to say. You have to help her overcome her shyness.