Sohyeong kim

Appearing in s1, ep.15. Member of Yeri's gang. and she mainly help by acting with Yeri's plan. Went to the same middle school as Yeri. Her mother (s1, ep.18) is the president of Soyeon Girl's High's booster club. Due to the existence of a horrible teacher like Sangyeol Cheon, she also hated teachers.

Was briefly seeen watching Yeri going to shave Sangwuk's hair off.

When Hanlim made an enemy of Yeri, Sohyeong was ordered to give a cake to Hanlim filled with razors. She tries to hit her with it but Hanlim kicks it over to Yeri's head as she bleeds. As Hanlim kept pressuring her and the others, Yeri though of an idea by using Sohyeong's mother to act. So she assaults Sohyeong to the face and make it seem like it was Hanlim.

So she did and her mother barged and slap Hanlim for "hitting" Sohyeong but Hanlim return the slap and scolds her, rendering Yeri's plan nullifed. For a couple of days, she and Yeri's plan kept failing. Nevertheless, she joins Yeri's actions to threaten Seonyeong when they trespass into her home. However, when she sees Yeri was trying to kill her, Sohyeong stops Yeri as it was going too far which result in her hand being cut by Yeri. Seonyeong checks on her injuries.

After Yeri runs away, she is treated by Seonyeong and tells her about Yeri's past. Next, she helps find Yeri and Hanlim. After the police was involved, she was force to explan and give evidence found on her cell phone reveals the truth of Yeongsu's suicide. Unclear of Sohyeong was punished severely like Yeri.