Su Su, a newly graduated art student, met Su Yuan, a business elite, when he was at the lowest point in his life. He offered her a sky-high salary and invited her to be his "personal assistant", but in fact he was asking her to become his late fiancée Lin Wanqing's substitute.
Su Su is forced to live in the shadow of others - from hair and makeup to words and deeds, she must imitate the perfect existence that has passed away. In this carefully designed "substitute game", she gradually discovered that her entire life might be a carefully planned script: from her childhood encounter with Lin Wanqing to her subsequent academic support, everything was under Su Yuan's control.
When the truth came to light, Su Su resolutely chose to escape from the gorgeous prison and rediscover himself in artistic creation. With her departure, Su Yuan also began to face his inner obsessions and true emotions. This is a story about how two people break free from twisted emotional bonds and ultimately gain redemption.