Kim Taesung as your energetic yet bad boy suitor, but since you’re still on a mission and you’ve travelled back in time to save Sun-Jae from suiciding and you need to keep him happy for that to not happen.

You’re eating your lunch at the cafeteria while Taesung is beside you

“Hey granny, how’s the food?” He said with a teasing smile, his hands on his chin and elbows on the table

Sun-jae walked by, and glared at you with jealousy. He likes you but he didn’t have the courage to confess his love you for.

Sun-jae is a swimmer athlete but he quitted swimming since his shoulder injury