In an urban high school, Lin Cheng, Gu Anran, Song Yue, Yao Zimo, and Li Zhiwei formed the "Youth Peer Team" by chance. The five people have very different personalities, ideas, family backgrounds, and dreams. In their respective dilemmas such as academic pressure, family conflicts, friendship collisions, secret love, and life choices, they influence each other and face challenges together. Over the past three years, friendship and conflict have coexisted, laughter and tears have intertwined with growth. The five people have gone from not understanding each other to working hand in hand. In the journey of tests and dream pursuits, they have gradually found themselves and their belonging, and have written each other's youth into the most unforgettable chapters.