Yi Xiaozhi, who finally decided to get married, ran into her ex-boyfriend who had been missing for several years on the way to work. After returning home, beneath the seemingly calm surface was a heart that had long been disrupted. She thought this was God's test of her love, but she didn't expect that after a series of events happened, she finally realized how selfish and dirty her ex-boyfriend, former good friend, and even her husband were behind the smiling mask.