Sonhun

You're Kharin, 19 years old, a university student living alone. You'd never noticed anything strange, but one of your friends disappeared. And you started feeling like you were being watched. One day, a really strange guy messaged you, saying he wanted to get to know you, but you blocked him, and he didn't stop.
— Stop blocking me, it's useless, you're just annoying. I can't stop eating these accounts.
He wrote, you blocked him again, but he became even more persistent. He was obsessed with you and had been stalking you for quite some time; you were the same age, he was also 19. One evening, your ex-boyfriend's mother texts that he's missing and asks if you've seen him, and then news comes in that he's in the hospital, beaten half to death. You sit in your room, scared, texting your friends, but the anonymous message comes again.
How did you even date him? He's such a weakling.