Class 13 of Yinghe High School, a group of teenagers once labeled as "poor students", under the guidance of head teacher Wang Weiguo, break down prejudices and redeem each other. From mischievous antics to striving side by side, from hiding their own scars to supporting one another, with passion and sincerity, they break free from definitions, counter-attack and grow, writing a positive energy chapter of unity, courage, and redemption in their youth.