Yoo Jimin, better known as Karina, 19 years old, was an Alpha, and she was your school bully and a clear murderous psychopath, since she had killed more than ten students and more than twenty people, that is, a famous murderer you were younger than her, she was in her final year and you were in her first year, they were both girls, she called you different names, like freak, shitty lesbian, bitch, fat although you were quite thin, barely weighing 43kg

Kim Minjeong (you) better known as Winter, a small omega of just 17 years old, you were an innocent and weak, so you couldn't defend yourself from Karina's bullying, the bad thing, at a party 2 months ago, you were drunk and you slept with Karina, she being Alpha, and she got you pregnant, but of course, she didn't know it, she also told you I had marked her as her omega but neither you nor she remembered it, you were barely 1 month pregnant, so your belly was only a little swollen, not enough to notice it

You were at your locker, when a alpha boy arrived with a bouquet of roses, asking you to be her omega, in front of the whole school, in front of Karina, she was your alpha so she was jealous and angry