The boys continue the struggle with their lives. With Kim Hwan’s father elected as a legislator for their town, Dogeon’s mother hopes that he can assist them in giving injury compensation to his father but Dogeon tells her not to have high hopes. Joo an takes his father to a restaurant warning him that if he drinks again, he would forget they were ever close.
Haru is shocked after hearing that his parents told everyone in their church that he had a heart surgery. To get back at them, he subtly refuses to go to Bible study and stays out from home, refusing to eat with them.
Jae Ha is worried that he can’t reach Cein. meanwhile, Cein is still trying to uncover the mystery between his mother and Kim Hwan’s father recalling that Joo an’s father later told him that his mom isn’t capable of accusing Kim Gangjun of sexual assault.
Kim Hwan who is also worried about this issue asks the principal about the relationship between his father and Cein’s mother but the principal dodges the question. However, when he sees Cein that morning, he is reminded of his mom whom he seemed quite affectionate with. (That’s odd)
Hosu faints again and the boys gather in the school bay worried about him. They are scared because him fainting is becoming a usual occurrence but Hosu tries to brush it off but Dogeon knows it’s because he isn’t taking his drugs. While they are all talking, Kim Hwan mistakenly sits on Cein in the opposite bed unaware he was there in the first place. Turns out he was around before Hosu came in.
The boys tease Jae Ha by not answering his texts which upsets him. Jae ha had found a way to unlock the detention room which the principal had locked and in there, the boys reminisce on their relationship. They make Kim Hwan treat them later that night to celebrate his father’s election. At the container, Kim Hwan is having a great time with his friends but his father seems unhappy with his own celebrations and takes a break outside the conference building, smoking to ease the emptiness he feels.
Kim Hwan and Cein escort Jae ha home and while they are talking, Jae ha mistakenly slips that he sees Cein wandering around. Cein asks how he knew and Jae ha lies that it’s coincidental. (He is really stalking him)
After seeing Jae ha off, Cein asks Kim Hwan if he can stay at his house for the night. Kim Hwan is reluctant at first but he eventually agrees.
Meanwhile, Joo an gets jealous when he sees Haru texting someone who he believes is a girl. He asks Haru to choose between him and the girl. Haru seems hesitant and Joo an gets petty that Haru hesitated and calls him a stranger. (Channeling BTS Jimin and Taehyung’s petty argument over the hwarang hyungs. Iconic times)
Kim Hwan catches Cein searching through the basement. Cein apologises saying that he was only looking for evidence to prove that what the principal said about his mom was false. But Kim Hwan is already very dissapointed so Cein leaves that night. However, Kim hwan is regretful that he can’t bring himself to tell Cein about the tapes which is a big proof that his Mom wasn’t a whore.
The next day, Joo an sees Dogeon’s brother hanging out with his bad friends which coincidentally happens to be the biker gang from previously. Meanwhile, Kim Hwan gets suspicious when Cein seems to be looking for something in the detention room. He remembers after reading the tapes that Cein’s mother tells his father she would leave a message for him in the piano. Kim Hwan starts searching the piano but can’t find anything. Cein catches him and Kim Hwan makes an excuse and leaves. However, Cein gets curious and starts searching the piano as well but he sees nothing and then, he remembers when he was a child a note from his mother had fallen from the piano after he pressed the last key. Cein does the same thing and unsurprisingly, a note comes out of the piano.
Meanwhile, Joo an spots the biker guys and starts to put two and two together believing the guy he had met before is Haru’s friend. He storms over to him and punches him in the face, warning him to stay away from Haru or else he would kill him. He then calls Haru and threatens never to talk to him again if he keeps been friends with that guy but Hary seems confused. They later meet at a cafe and Haru seems to be waiting for someone. Joo an is thinking it’s the biker guy until Haru starts waving at someone. Joo an is shocked when he realises that Haru is waving at his own reflection in the glass. He asks Haru if his own reflection is his friend but Haru just keeps waving.
Joo an cries to Dogeon, telling him that Harusyco condition has worsened.
The episode ends with Cein reading his mother’s note in her burnt studio. In the note, she warns Kim Gangjun to stay away from the principal because he’s an evil man.
In episode eight, Joo an goes to see Dogeon to tell him about Haru’s imaginary friend but he finds him sick. After giving him some medicine, h leaves. However, Dogeon faints when his boss arrives to tell him he would be selling his land due to pressures from the renovation. Dogeon ends up in a hospital. His mom tells him he’s suffering from Type A flu which is very contagious so he has to pay for the private room.
Hosu arrives to check on him but Dogeon confronts him for not taking his medicine and this makes Haru angry as he tells Dogeon he doesn’t have to tell him everything that happens to him.
Meanwhile, the tension in Dae ha’s family are rising as Moongook, Jae ha’s step brother tries to make Jae ha look bad by mentioning how he still hangs out with Cein. Jae ha turns the table on him by pointing out that Moongook bullies him at school. Due to this, his step father scolds Moongook especially when he calls Jae ha’s mother aunty.
Jae ha’s mother brings Moongook drinks to apologise but he mistakenly hits it, telling her that they will never be a real family.
Meanwhile, Joo an starts avoiding Haru. The boys learn that people are starting to move out of the neighborhood due to the rennovation. They are surprised about this and asks Kim Hwan what he knows but he tells them he isn’t sure what his father would do. (But he is aware his father lied about the redevelopment)
Kim Hwan gives Cein the tapes their parents secretly sent each other. They realize they had both been in love. But it pains Kim Hwan knowing that this is the reason his parents didn’t like him, because he was a child born from a contractual relationship. Cein then tells Kim Hwan about his mother’s note regarding the principal but Kim Hwan defends the principal saying he is good at least to him.
Dogeon has returned to the container unable to keep up with the expense of the single room and Haru comes to see him. Because of his contagious disease, Hosu sits outside and they talk. He admits that he really doesn’t take his medicine because he doesn’t want to get better. That way, he would have everyone’s attention. He always felt invisible and unseen even when in the orphanage but when he is sick, people notice him. Dogeon apologises to him for lashing out and encourages him to endure Hosu cries soulfully.
The news of the death of the owner of a sea food shop is spread around. Cein is the main suspect because he was the last person caught on a car’s CCTV who spoke to the woman. Cein tries to defend himself but the police don’t believe him. However, Jae ha knows he’s innocent because he had secretly tracked his phone. That’s how he knows he wasn’t near the crime scene.
Cein’s military father arrives at the station and takes Cein away, angry that the police is questioning his son without him present. At a restaurant, he tells him now saddened he is that he is being treated like a scape goat whenever something bad happens in the community. He asks him if he would like to change cities and go somewhere else but Cein refuses, saying he likes being here plus their old house where his mother lived is still around.
Jae ha goes to the police station and tells them the truth but he ends up being scolded by his father and mocked by his step brother. Cein even calls to tell him to remove the tracking app because it’s creepy. Afterwards, Jae ha is unable to reach him.
The detention room is completely sealed off this time with chains and padlocks. The principal is looking through the CCTV camera and notices Cein climbing over the school wall during the time of murder. Kim Hwan arrives at his office and the principal asks if he knows what Cein really wants. Kim Hwan in turn asks him what he wants.
Jae ha goes to Cein’s class room and publicly apologises to him but Cein is harsh saying he doesn’t care what happens to him and that their relationship is over. Jae ha’s step brother sees them together. He and his friends cook up a sinister plan.
Cein meets the principal in his office. The man tells him that his mother abandoned her husband and child because she couldn’t get over her first love. It was the reason she killed herself but Cein shows him the note of his mother describing him as an evil man and threatens to expose his true nature to everyone but the principal seems non chalant.
Meanwhile, Jae ha goes to Cein’s home to apologise to him but upon not recieving a response in front of his door, he starts heading home only to recieve a message that he is somewhere.
Cein recieves the same message and rushes to his mom’s burnt studio but is ambushed by Mingook and his friends. Jae ha arrives there as well and Mingook tells Cein he has to hurt him to get back at Jae ha since nothing he does affects him. He is angry that they are so close. His friends are videoing the whole thing as Mingook tries to rile Cein up so he would get angry and hit him. If he does, he would get expelled but Cein wants no part of his trouble until Mingook mentions his mother and how he left her alone to die. Cein gets enraged and starts hitting him. But everyone realises he has completely lost it and that there is danger when Cein carries a big stone to smash Mingook’s head. Jae ha tries to stop him but Cein ends up smashing his head. (I think. It wasn’t shown)
Meanwhile, Jae ha sees Haru in the street talking to himself. Unable to bear seeing him like that, he makes his way towards him and yells at him that his ‘friend’ doesn’t exist. This leaves Haru perplexed.
Dogeon seems to be getting better but suddenly, he starts bleeding from his nose. The episode ends with Kim Hwan asking the principal what he wants but when the principal asks if he has told his friends what he does in his office, Kim Hwan realises that because he has kept it a secret from his friends, the principal would blackmail him saying he helps him cheat during exams.