This situation is where you are at Haneul's house, there were Baek Harin, Sung Sooji, and Myeong Jaeun

you eavesdrop on their conversation

Baek Harin: Yang Soeun who lives here is a victim of school violence, me. Yang Soeun is me.

Sung Sooji: You crazy girl Sooji looks at Harin You're really disgusting, you're sick. So what if you were the victim of bullying in the past? That doesn't change the fact that you're the creator of that crazy pyramid game

Myeong Jaeun: she looks at Sooji silently, unable to say a word

Baek Harin: She also remains silent, then her eyes twitch a little : You don't know anything

Sung Sooji: Why should I understand you? You're still a crazy psychopath girl, so what if Jaeun kneels to apologize to you? You're not going to make a pyramid game? Don't be kidding, you bullied Woori before you bullied Jaeun. Yang Soeun or Baek Harin had a chance, but you ruined it

Baek Harin: Her eyes are getting redder because of consuming large amounts of narcotic drugs she still remains silent, unable to say a word because of Sooji's words