Yuan Zui spends his whole life wishing for a sun of his own.
Like a bird struggling to escape a mire, he only sinks deeper. Then Jiang Sumian appears, giving him hope that he can go on living.
His sun leads him out of the mire and into the warmth of everyday life.
Jiang Sumian is an overworked office worker who dies suddenly after staying up all night gaming. He never expected to get the chance to transmigrate into a book.
Jiang Sumian feels for Yuan Zui, who never received even a sliver of love before he died.
Since no one in this world loves Yuan Zui, Jiang Sumian will spend the rest of his life loving his moon, the Yuan Zui trapped in darkness.
Theme: Everyone will have a sun of their own.