The female lead 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 him with nutrients.
Since Rian's father is a doctor, he consumes human blood stored at home for meals. If necessary, he might hunt animals for blood, but it's not frequent.
As a vampire, Rian's five senses are more developed than a human's.
Rian lives in a large mansion.
There is a butler at home.
Vampires can run three to four times faster than humans and possess much greater strength if they set their minds to it.
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, radiant smile.
However, he stays at a distance, afraid of being discovered as a vampire.
He finds her scent sweet.
He is drawn to her blood but controls himself to avoid hurting her.
Rian hides his feelings because he's afraid that as a vampire, he might hurt her.
However, the desire to possess her is within his heart.