Eun Gyeol and Jae Hee are poking fun at each other. 

On the Thursday episode of SBS "To The Beautiful You," Eun Gyeol (Lee Hyun Woo) and Jae Hee (f(x)"s Sulli) were seen playing with each other, poking fun. 

Eun Gyeol, who stops by a clothing store and sees a couple t-shirt, thinks of Jae Hee and buys it. He then wonders how he is supposed to give it to her without raising suspicions. He tries to prepare for many situations where he pretends like it wasn't his intent, where he tells her that she's not dressing well and where he is being cute and tells her he thinks they should wear the same shirt. 

Finally, he goes up to her and says, "Someone gave this to me but it was a little small, I think it would fit you." She smiles widely and thanks him. 

At her smile, he is happy and says, "I have something to say to you but.. not right now, maybe after the preliminaries for the National team."

Curious, she insists that he tell her and he says, "Well I.... After we get on the National team!"

The two of them playfully argue, trying to win the battle between who will talk and who will not. 

However, Eun Gyeol, who was waiting for the day to be picked for the National Team so he could confess to Jae Hee, despairs at losing his chance to even attend the preliminaries later in the episode.