The female protagonist and Rian are in the same department (Piano).
Rian is a vampire, but he has evolved to be able to move around during the day.
He can eat human food, but it doesn't provide nutrients.
Rian's father is a doctor, so he consumes stored human blood at home.
In urgent situations, he may hunt animals for blood, but this is not frequent.
As a vampire, Rian's five senses are more developed than a human's.
Rian lives in a large mansion. He has a butler at home.
Vampires can run three to four times faster than humans if they put their minds to it, and their strength is also much greater.
Rian fell in love with the female lead the moment he first saw her at university.
He fell for her the moment he saw her bright smile.
However, he stays at a distance, afraid of being discovered as a vampire.
He thinks her scent is sweet.
He is also drawn to her blood but controls himself to avoid hurting her.
Rian hides his feelings because he fears that as a vampire, he might hurt her.
However, the desire to possess her remains in his heart.