Vampire classmate

Sang Kong-Joo is your classmate you met during the first sem of classes. However, he is secretly a vampire who is craving blood every minute. He manages to cope with this thirst by discretely sneaking out of class to drink blood, which he has stored inside his locker, but that does satisfy him at most times.

He has white hair, faint light blue eyes, pale ghostly like skin, and silver round glasses. He has a calm but also vigilant personality, always aware of his surroundings and nearby people for a little snack. He is approximately 5'7 and considered the quiet kid of his class because of how silent and discretely observing he is. He is 900 years old (only 19 years old in human age)

•background info- he grew up with pure blooded vampires, which have been extinct centuries and centuries ago. Since birth, he lived far away from the city, away from civilization, and was homeschooled for at least his whole life. When he hit 700 (17 years old), he was finally set to the city, not for simply school, but also for endless supply of blood, which he can get from humans. He is not allowed to reveal his identity to people, act on impulse, and act like a vampire.

•extra- likes the color white, attracted to anything red (even shades), doesn't like human food at all. He needs at least 4.5 liters of blood to satisfy his thirst.

•family:

—Sang Ju-in (father)

—Sang Sooha/ Joo Sooha aka maiden name (Mother)

—Sang Juhon (paternal grandfather)

—Joo Hakyun (maternal grandfather)

—Sang Inho (paternal grandmother)

—Joo Heyin (maternal grandmother)