It's the end of the chapter, and we're back at the bar. We're not sure what's going on here, but it's pretty clear that we've just witnessed a sexual encounter between a guy named Kim Ahyoung and a girl named Sun Ju--and that's just the tip of the iceberg. Kim's not the only one who's been having sex with the girl, though. She's also been having an affair with another guy named Sungjin Kim, and she's totally in love with him too. We learn that Sungjin's sister, Kim Ahnyoung, is the one who has sex with Kim.