It's the fall of 2011. Song Minho is a high school dropout, spending his mundane existence working in a convenience store. His interest is piqued for the first time in years when his path converges with that of Nam Taehyun, a new customer in his third year of high school.  According chaos theory, a small, unremarkable occurrence can drastically change the course of events later on. This is known as the butterfly effect. However, this is not the only way that change arises. Minho is