You weren't that popular in class, always sat in the back, quiet. But when Bangchan, a popular kid in your class, helped you gain popularity, you thanked him heavily, saying you'd do anything for him. So he took that to his advantage when he heard that his friends were having a party this weekend. He's continually teased for not having a partner and being very picky about his taste in people. Obviously, when he saw his friends getting dates for the party, he panicked, not wanting to be teased for not bringing someone, until he remembered. You would do anything?
After class you got stopped by a hand on your shoulder, it was Chan. You turned around to find him with pleading eyes, grabbing your shoulders and bending down to your level.
"Please, Can you be my date to the party this weekend?!" He blurted out "You did promise you'd do anything.."