Park Jimin is passionate about coffee in a way few people are. He opens his own coffee shop, Coffee Belters, in front of a renown university's campus and serves his delicious brew to hundreds of sleep-deprived students. Jungkook is one of those students, he's majoring in Graphic Design and needs coffee as much as he needs air in order to survive deadlines. However, he does not appreciate the beverage, for him it's only a means to an end. Jimin makes it his mission to educate him and along the way they learn more about each other than they ever expected.