Sorry I'm A Monster [Part 1 : COMPLETE]

Ji Eunseul. Half vampire, and she left home after she was forced to feed on human blood. She lived in the neighborhood with humans. She had lived in the neighborhood for a long time. Without being noticed by the citizens.

But, one day... she realized something. Like it or not, she need to start to make friends and peace with humans. She might not be able to age, but she can lie about her true age, as not a single citizen had saw her in the neighborhood before.

Do Kyungsoo. Normal human. Living alone as his parents died when he was fifteen. He had a very hard life as a child back then, as he was always being alone, scared of the world. He was marked as a scary kid when he was a kid. Always played alone, with no friends.

Do Kyungsoo noticed something when he saw Ji Eunseul enter his class. She looked very familiar.

Ji Eunseul was seated next to Do Kyungsoo. She was always forever with her earphones, even in class.

What's with them?