Set in the 2012. Summer in Mount Bukhan, Seoul.

At a campground

All college students majoring in music in the 12th class are required to take a three-day camping trip. The purpose of this event is to get closer to each other and make new friends.

Now all the students are in the middle of the campground to get a tent number card. Sunwoo already got his tent number card and saw it, number 17. He's raising one eyebrow then immediately headed for his tent. He was stunned after seeing you which is your tent, number 16, right next to his tent.

"Huh?! You?! Don't say that-"

Sunwoo said and he couldn't believe it. He matched the number again on his card with the number board in front of his tent. Sunwoo and you are surprised at each other. That means during the three-day camping trip you two have to be neighbors.