Hae-Seong sneaks into the old building for looking for the gold bars in Undercover High School Episode 2. But Soo-A points a gun at him. She looks scared when she faces the man. She tells him that her gun isn’t a toy. He recognizes her and he sees her armband. He learns that she came to patrol.
Hae-Seong uses the light of the flashlight to light Soo-A. He catches the chance to flee. She chases him but she bumps the guard. Hae-Seong is missing when she stands up. Jae-Moon reports to Myeong-Joo that Soo-A saw the suspect. She’s told that the suspect fled from the first floor. She knows he didn’t go to the basement. She believes that the guy will come again. She decides to wait for him.
Hae-Seong doesn’t complete his task. So he decides to continue to conceal himself. He bought drinks for some students. The students mistake that he can be bullied like Dong Min. The student Tae-Soo asks Hae-Seong to help him get full rank in the game. Hae-Seong calls his colleague Mi-Jung. He asks her to help him. But she rejects it.
The colleague Young-Hoon sees the news that Myeong-Joo wants to build an education city. He suspects that Myeong-Joo plans to carry the gold bars overseas. Yoo-Jung finds Hae-Seong who is calling. She reveals Tae-Soo bullied students because his father is an assemblyman. She tells Hae-Seong to be care of Tae-Soo. Yoo-Jung is kind and sunny. I like the girl.
Hae-Seong returns to the classroom. He finds out that Dong Min is missing. Soo-A notes it as well. She asks Tae-Soo about Dong Min’s whereabouts. He reveals Dong Min took a leave because he felt uncomfortable. Soo-A believes Tae-Soo. But Hae-Seong knows Tae-Soo told a lie.
Hae-Seong plays game for Tae-Soo outside. He sees Jae-Moon waling into the old building. He tries to tail him. But he’s driven away by the guard. He reports it to Seok-Ho that Jae-Moon walked into the old building. He passes by the trash can. He finds Dong Min from the trash can.
Hae-Seong knows Tae-Soo threw Dong Min into the trash can. He gets angry because Dong Min didn’t fight it back. Dong Min had a reason to endure the bullying. He doesn’t have parents and he lives with his grandma. So he asks Hae-Seong not to report it to the teacher.
But the teacher Soo-A finds Dong Min. She mistakes that Hae-Seong bullied Dong Min after she saw the dirty on the boy’s body. Dong Min doesn’t want to offend Tae-Soo. He also doesn’t wish his friend to get understanding. So he tells Soo-A that he tripped on his own.
But Soo-A still suspects Hae-Seong. He makes an excuse and he leaves. Tae-Soo saw Hae-Seong saving Dong Min. He goes to the Student Council for a meeting. He complains it to the people that Hae-Seong saved Dong Min. Yoo-Jung blames Tae-Soo for bullying Dong Min. But he mocks her that she’s just a maid of Ye-Na. Ye-Na isn’t happy because Tae-Soo touched her girl.
But he doesn’t want to do that because he thinks his position is higher than Yoo-Jung. Ye-Na threatens the guy that her mother Myeong-Joo can decide his father’s future. He has to apologize because he knows he’s nobody without his father. Yoo-Jung thanks Ye-Na. But Ye-Na reminds Yoo-Jung her status. She thinks she should scold Tae-Soo even if the guy made a mistake.
Dong Min and Hae-Seong go to the cafeteria to have lunch. Dong Min tells Hae-Seong the rumor of the old building. The girl liked ballet but she got bullied by other girls. She was hit by a car and she lost her legs. She had to give up her dream. She felt painful. She ended her life in the end. Other girls worried that they will take the duty. They hid the girl’s dead body under the floor. The guard saw the girl on the floor. He approached her. But she got up and she scared him.
Dong Min tells Hae-Seong that the girl will appear in the dance room once it reaches the girl’s death time. Hae-Seong thinks it’s just a tale. But Dong Min takes out the evidence. The guy once went to the old building. He filmed someone looked up. He was scared to flee. He believes what he saw was a ghost. He tries to share another school rumor with Hae-Seong.
Tae-Soo and his men arrive. He spits on Dong Min’s food. He forces the boy to eat it. Dong Min endures the humiliation and he takes the spoon. Hae-Seong cannot stand it. He scolds Tae-Soo. Tae-Soo is furious to flip the plate. Soo-A stops the two when they’re having a fight.
They’re taken to the office. Gwang-Doo releases Tae-Soo. He asks Soo-A to punish Hae-Seong. Soo-A thinks Hae-Seong should report it to her if Tae-Soo attacked him first. He remembers his teacher ignored it when he was bullied. He sighs that the bullying cases didn’t appear. He asks Soo-A if she pretended not to know. She feels guilty because she didn’t find out that her student got bullied.
Meanwhile, Young-Hoon wants to help Hae-Seong because he worries that he cannot deal with it alone. But Seok-Ho believes that Hae-Seong wouldn’t bring trouble. Director Kim shows up. He plays the video. They watch Hae-Seong beat Tae-Soo.
Seok-Ho takes Hae-Seong to visit Director Kim in the evening. Seok-Ho wishes Director Kim to forgive Hae-Seong. Director Kim scolds Hae-Seong. He reminds him that he followed his father’s steps into NIS. He tells him not to lose his father’s face. Hae-Seong returns home. He remembers he saw his father Jae-Hyun the last time. He mistook that his father went to work. But his father didn’t come back.
Tae-Soo isn’t happy that Hae-Seong went against him. He wants to find a way to kill the guy. The boss wants to help Tae-Soo. But Tae-Soo rejects it. The boss asks the boy to pay back the money. He asks him to bring the ID like he did last time. Tae-Soo comes up with a plan. He visits Dong Min’s family when Dong Min went to work.
He pretends to be Dong Min’s best friend. He tells a lie to Dong Min’s grandma that Dong Min got scholarship. But he needs Dong Min’s ID for receiving the scholarship. Dong Min’s grandma believes Tae-Soo. She goes to take the ID. Dong Min knows nothing about it when he’s delivering food. He sees Hae-Seong breaking into the old building.
He follows Hae-Seong. Hae-Seong persuades Dong Min to leave. But Dong Min rejects it. Hae-Seong has to let Dong Min follow him. The two go to the basement and they see a person who wears a hat. The person throws a hammer at them. He flees. Hae-Seong fails to catch the guy. He sees a door.
SEE ALSO: Undercover High School Episode 1 Recap: Jung Hae-Seong Becomes Oh Soo-A’s Student
He opens the door and he sees the information about gold bars on the wall. He calls Seok-Ho and he thinks Myeong-Joo is looking for the gold bars. He doesn’t know he’s filmed by the camera. Myeong-Joo watches Hae-Seong from the CCTV.
SEE ALSO: Undercover High School: Episode 3 Recap
Hae-Seong finds Dong Min. He tells the boy to leave with him since he has gotten the information. But Dong Min is scared to ask Hae-Seong to look a look at the stuff under the floor. Hae-Seong sees a human skeleton.