At Eighteen Season 1 Episode 8

Mr. Oh decides to invite the parents and hold an open class, thinking it is a good opportunity to prove that he is capable. After the open class, Jun Woo works up his courage to finally ask Soo Bin out on a date. Meanwhile, Sang Hoon, who feels that he is being robbed of his first place spot, takes matters into his own hands. Hwi Young witnesses the lengths his parents will go to and feels sad and ashamed.