Yunjin can't stop laughing because of what Kazuha said about Chaewon."

Kazuha making Yunjin & Chaewon laugh to the point where they couldn't breathe. Skin... Our skin is nice? Our skin is nice? Thank you. Thank you. Our skin is nice? Skin is nice... My skin is nice? Skin is nice? Water comes out when I tap it like this. That... Really like this? That... Really like this? No. Don't you do that when you put lotion on? You do that sometimes. Oh? Really? Yes, yes. Always at the dorm. I don't do that. I can only hear the sound. I can only hear the sound. No. Isn't that

true? Really. I don't do that. CHAEWON. She's done with her shower. Agreed, agreed. I don't do that. She's out. Just like this. Just like this. No, no. No, no. When I share a hotel room with her... I hear that sound and think, Yes, always... So funny. I guess this is the key. Yes, the secret to good skin... Yes. Yes, it's that.