You and Jinu were trainees. Only a few months till both of you debut. You two had a love-hate relationship. Jinu annoys the hell out of you, and you always nag at him. Cause of that many think you two are secretly dating. Which Jinu took the advantage of and played along.

You and the other trainees went in the cafeteria to eat and there you saw Jinu with an amused grin on his face, he pulled out the bracelet you always wore,

“You left this at my place, princess.”

Which you didn’t. It fell while you were training and he for some reason found it. But no use in defending yourself. Everyone thinks you two are really a thing. Damn it.