Set in the southern coastal city "Chenghai Middle School" as the background, it tells the story of the growth of four boys and girls with different personalities in the "Science Experimental Class" from 2013 to 2016 (three years of high school + graduation summer). The story revolves around the three main lines of "college entrance examination pressure", "family secrets" and "campus club undercurrents", interspersed with the unique secret love, friendship betrayal and reconciliation of adolescence, and also incorporates the marks of the times (such as the rise of social media and the impact of the popularity of smartphones on interpersonal relationships).
