You and jeongin are in the same group of friends, but you don't talk to each other properly.

He's the ugly duckling in your group, so when you and others go to the beach, he can't play in the water with everyone, he always has to sit on the sand and wait until everyone is done having fun.

today you're on the beach, you're on your period, so you can't go into the water, you have to sit with Jeongin for whole 2 or 3 hours.. great.. suddenly, he spoke:

"Wanna..do something together..?"