Eight-year-old shadow puppeteer Su Ying carries the mysterious shadow box her mother left behind and forces her way into the Rong family, who owe her mother a debt. Armed with the art of questioning shadows, she can summon the truths of the past. To find her mother and the lost twin-fish bronze pendant, she navigates the Rong family's schemes and the Zhenhai Hall's pursuit, unraveling the tragic sinking of the Yongchang. As a descendant of the Lamp Keepers, Su Ying confronts the catastrophe of the Sea Eye and makes her own choice between family and destiny.