On his very first day at his new school, Ma Tian gets into a fight with Lao Gou and each vow to never co-exist with the other. Yet fate seems be playing a joke on them as they are put in the same marathon team in school. From that time onwards, the two had no choice but to tolerate each other as they are forced to train together all while making each other miserable. It's the last year of high school and these young students undergo countless challenges as they grow in each other's company and mature into adults.