At the entrance of Wutong Alley where cicadas were chirping in the midsummer, Su Wanxing, an "art geek" with a serious bias for science, accidentally knocked over the competition notes of Lu Zhiheng, the top grader. The two people who had nothing in common originally formed a bond because of this incident - Su Wanxing helped Lu Zhiheng complete the planning of the art festival exhibition in order to apologize, and Lu Zhiheng was "forced" to help her with tutoring in partial mathematics. From the paint dispute in the studio to the explanation of formulas in the study room, from the newsstand taking shelter from the rain to the playground track on a summer night, two people with very different personalities gradually get closer in their trivial daily life. When Su Wanxing's paintings were questioned because they were "not mainstream enough", Lu Zhiheng quietly helped her collect materials; when Lu Zhiheng collapsed due to the pressure of the competition, Su Wanxing took him to watch the starry sky in the mountains to relieve his worries. The ignorance and throbbing of youth spread in the summer night wind. Not only did they heal each other's shortcomings, but as they grew up side by side, their secret love grew into a star that illuminated each other.
