Illustrator Lin Xia meets a mysterious young woman on a high-speed train. The woman's custom hand-drawn phone case unexpectedly exposes a secret her husband, Gu Yanzhou, has been hiding. While pretending to live in poverty, he has secretly transferred their marital assets and stolen her original designs to gain professional success and fame. Lin Xia gathers all the evidence and decisively files a lawsuit, exposing the entire truth at an awards ceremony. Gu Yanzhou loses his reputation, falls into debt, and finally realizes his mistakes, desperately begging her to take him back. Lin Xia completely leaves her broken marriage behind and uses her own talent to begin a brand-new chapter in the art world.