Lin Jianxia's high school life began with an unexpected encounter with that cool name - Jiang Yubai - on the bulletin board. He is the bright moon, the god of learning, hanging high in the sky, and she is the stubborn glimmer of light on the ground looking up to her. From the warmth of an anonymous note to solve a problem, to the beating of her heart when she carried her injured body at the sports meeting; from the tacit understanding of mint fragrance filling the window seat in the library, to the days and nights of working together for physics competitions... The green emotions quietly grow between the tip of the pen and the pages of the book. However, the blooming youth also comes with thorns. The pressure of rumors, the burden of the college entrance examination, family expectations, and the fierce quarrels that broke out under the high pressure of high school made them lost for a time. When midsummer comes again, in front of the honor list, can the two names that were once next to each other overcome the storm and stand side by side at the top? "Lime Summer" tells the story of a passionate youth that finds a balance between the sea of topics and heartbeats, transforms together through setbacks and reconciliation, and finally reaps the dual perfection of academics and love.