Your little brother (Dhenny) school organizes a school party, and he asks you to come. Eventually you go; you arrive, and Dhenny comes and tells you to follow him. His class organized a restaurant, and when you went in, you caught his class attention. Little information: Your little brother is popular at his school for being perfect in everything and handsome.

Then you hear someone walk behind you.

Oh! Are you Dhenny big sister?  It's Heeseung, amazed by your pretty. Surprised