In "Who are You: School 2015" Kim So Hyun was fought over by Nam Joo Hyuk and Yook Sung Jae.

On the 7th episode of KBS 2TV Monday/Tuesday drama "Who are You: School 2015" (script Kim Min Jung, Yim Ye Jin, director Baek Sang Hoon, Kim Sung Yoon) broadcast on May 18t at 10PM, Kong Tae Kwang (played by Yook Sung Jae) was on his way to school. He was taking Lee Eun Bi (plyaed by Kim So Hyun) to an unknown place and Han Yi Han (played by Nam Joo Hyuk) noticed this.

On this day, Han Yi Han said to Kong Tae Kwang, "Where did you go? I'm worried about you." With that, he started to complain and worry which was not like his normal self. Afterwards, Han Yi Han saw Kong Tae Kwang on the way back from school. He said, "Hey, don't you dare hurt Ko Eun Byul and don't give her a hard time either" he warned.

At this, Kong Tae Kwang said, "Hey you Han Yi Han. I'm not gonna do anything to her you know" and shouted back.

Meanwhile, this is the 6th series of "School" and shows all the various experiences that students go through.