While Jae-yeol and the imaginary Kang-woo run giddily through the streets, Jae-bum vehemently proclaims his innocence to Sunbae Jo-even though people think he's a monster, he's hard-working and good. It's his brother who's the monster.
"Please save me," he begs Sunbae Jo. "Please save me." It's enough for Sunbae Jo to ask the higher-ups for Jae-bum's case history, including anything related to his stepfather's murder.
Jae-yeol stops to check on Kang-woo when he gets a little too winded from the run, but no sooner does he turn around that So-nyeo calls his name. When Jae-yeol turns back to find Kang-woo gone, he calls his name repeatedly, much to So-nyeo's bemusement.
After realizing that Jae-yeol went into the bathroom during her drunken night and never came out, Hae-soo jumps up excitedly at the sound of the door... but it's only Sunbae Jo. He picks up on her disappointment and knows exactly who she wanted to greet. Hah.
So-nyeo follows Jae-yeol home, asking about who he was with. "A friend," Jae-yeol replies irritably, before So-nyeo chirps back, "But you were alone." Jae-yeol either doesn't listen or selectively ignores that part, but it's funny to see how his expression drops knowingly when So-nyeo launches into a sob story about her family in order to convince him to let her stay for the night.
Jae-yeol gives her some money in an effort to shoo her away, but So-nyeo knows just how to play him by saying that she'll use the cash for cigarettes, which finally gets him to relent. But JUST for one night.
He's surprised when Hae-soo greets him expectantly upstairs, and attempts to divert her attention by asking whose picture she had on her phone-was she two-timing PD Choi?
Hae-soo barely gets to ask if he's jealous before she hears So-nyeo downstairs. Even though Hae-soo orders her to leave, So-nyeo impudently replies that this is Jae-yeol's house, and he said she could stay.
There's no escaping Hae-soo's interrogation, even though Jae-yeol tries to keep their conversation short since he has to work. But after he flippantly dismisses her question about which "kid" he was out with before he came home, Hae-soo asks why he texted her that nonsense about his heart fluttering.
Jae-yeol angrily barks back that that was then, and this is now, which she takes as him just being an incorrigible flirt. She huffs and puffs so loud about being crazy for letting her heart flutter because of him that he can't pay attention to his work, and it turns into a really hopeless case when he ends up following her downstairs since she's set her mind to telling So-nyeo a thing or two.
He thinks Hae-soo is going to kick her out, only to be surprised when Hae-soo wants to "protect" So-nyeo from any players in the house by letting her sleep in her room. "I didn't realize you had such a humane side to you," Jae-yeol notes sarcastically.
They get into an argument about how players have feelings and principles too, causing Jae-yeol to ask if she wants him to prove it. What if he were to just focus all his attention on her? Would she be happy then?
Hae-soo calls bullshit, and Jae-yeol laughs that she's not such a charmer to be around, either: "You're too pure for me." Hae-soo is left angrily muttering that only in today's world could purity be considered a bad thing.
After her unni talks Jae-yeol up about maybe-kinda-sorta dating her sister, finding So-nyeo on the toilet while she's in the shower proves to be the last straw for Hae-soo, as she drags the girl out by the ear... while wearing only a towel. Of course, the three men of the house are outside to watch the spectacle.
Hae-soo warns the boys that she'll kill them if they allow So-nyeo back into the house, prompting them all to commiserate about the way she treats them. Even though Jae-yeol doesn't know why she's always sore at him, he asks if this is a usual occurrence when she gets angry-y'know, the whole almost-naked bit.
