Rating 2, 0 (· Flashbacks show Professor Seo telling Ji-ho that he's his son, but it seems like he's confusing him with Han Joon-hwi since he's extremely tall. Yang stays with Ko and tells him that Man-Ho had no intention of killing him. It's revealing that Man-Ho fell down the stairs like Seo did, causing Joon-Hwi to catch up and ask him about the pen. The ex-convict is still exhausted and finally leaves without saying anything.
Ji-ho tells Han Joon-hwi that it would make much more sense to say that Professor Seo wrote that thesis in the Kang Sol B case and then refers to an article in which CEO Seo Gi-yeol commits suicide in the middle of a judicial process. The flashbacks show Ji-ho telling Professor Yang that he wants to accuse Professor Seo of publicizing an alleged crime that caused the end of his father's life. He then revealed to Joon Hwi that he is the son and that the prosecutor who handled the case was Professor Seo. The flashbacks revealed that Ji Ho wants to accuse Professor Seo of publicizing an alleged crime that led to the death of his father.
At present, Ji-ho tells the court that he went to Professor Yang seeking revenge against Professor Seo because he killed his father. He told Han Joon Hwi (Kim Bum) that it doesn't make sense for Professor Seo Byeong Joo (Ahn Nae Sang) to write the argument in the case of Kang Sol B (Lee Soo Kyung) that contradicts the article about the death of the CEO of the toy company Seo Gi-yeol. Assemblyman Ko gives a lecture to the students Professor Seo mentions and how he is dismayed that the place he donates to has become a murderer; he then explains how Seo was part of a drunken hit-and-run incident and reached an agreement with a sex offender. Once accepted, Joon-hwi initiates a petition to prevent Seo from being hired at the school, because she believes that Seo's donation to the simulated test room is a bribe.
The flashbacks show Professor Seo telling Ji-ho that he is his son, but it seems that he is confusing him with Han Joon-hwi, since he is extremely high. As Seo Ji Ho recalls his last moment with the late teacher, a flashback appeared of him and Seo Byeong Joo, who was high. Kang Sol, Han Joon-Hwi and other Hankuk students work together to reveal the truth behind Professor Seo's death and prove Professor Yang's innocence. After that, Professor Yang introduced Ji Ho as the one with the greatest motive to kill Seo Byeong Joo.
Ji-ho saw that Professor Seo was high and considered that it was worse than death to try to call a doctor, but he didn't respond.
