The “Youth Over Flowers” boys love to joke around with each other!
As they are diving and having fun, Ko Kyung Pyo suddenly suggests, “Let’s each take off our underwear under water and shake it around,” and everyone cooly starts taking them off.
Then Ahn Jae Hong, Ko Kyung Pyo, and Park Bo Gum suddenly takes Ryu Jun Yeol’s underwear and begins throwing it to each other. Being flustered, Ryu Jun Yeol keeps pleading, “Bo Gum, I’m sorry. I’ll be good to you,” and makes others laugh.