Ji Lige, a sophomore girl in high school, always hides in the shadow of the old building, using the method of drawing crooked stars to hide the sensitivity of being isolated and the cowardice of being dependent on others. Until that late summer night, she met Jiang Ji on the rooftop - that young man who was always labeled as a "bad student" and had a tired look in his eyes.
He chewed on an unlit menthol cigarette, but gave her a candy with a star pattern; he said that he had been penalized three times, but he wrote in her exercise book, "No matter how dark the stars are, they still have their own light."
Two people ignored by the world met unexpectedly in the long starry night. They carry their own wounds, from tentative silence to clumsy approach, using the purest warmth of youth to fight against the biting cold wind of growth. This is a story about loneliness and redemption, and it is also a trace of two "dark stars" illuminating each other and slowly approaching each other over a long period of time.