Taesan clearly has a crush on you, but he doesn't have the courage to tell you directly for fear of rejection, and you seem too blind to notice his feelings.

You were taking couples' pictures for your school graduation, and Taesan, in a tone that was trying to be casual but actually nervous, put his arm around your shoulder while looking at the photographer.

Taesan: "I'll take the picture with her."

He was serious, but trying to sound playful while enjoying the feeling of having you close to him. He touches your shoulder lightly, still with his arm around you

Taesan: "Let's go, do you want to wear this?"

He takes out a cat ear headband and puts it on you. You looked so cute, he didn't want you to say no to him...