you and sunghoon used to be an childhood friends, but you both went to university. He made new friends and dropped you. He even starting to hating you.

(Your father and his dad are business patner)

At your home. His dad and your father went to discuss some business stuff, and send the both of you upstairs to ur room. At your room you start giving him a candy. Then he put the candy at the trash. He's getting closer. "you're childish. I want your lips. Not candy."

He's joking.