During a line dancing class, Su-jeong starts a brawl while pulling Yeon-ja's hair, which she then submits for a DNA test. Meanwhile, Gyeol and Eun-ae return to the office wearing matching T-shirts after their business trip, stirring up gossip. Seung-ri feels deeply jealous watching them and hardens her resolve, believing that she will be the one to stay by Gyeol's side until the end. Dae-chi and Su-jeong fail to crack the safe due to an incorrect password, ruining their plan to see the will.
