Shuyi Chen

In her past life, Claudia Gage was cast out by her brother and died on the streets. When she goes back in time to the day she's reunited with her birth family, she sees through their hypocrisy and refuses to be one of them. As a result, she is sent to the Sawyer family instead. The Sawyers are rumored to be ruthless, yet to everyone's surprise, Yves Sawyer declares Claudia as his sister and warns anyone who dares to cross her.

Summer Gray, a struggling exam candidate, needs money for her grandmother's medical bills and the cost of preparing for graduate entrance exams. She signs a "stand-in" contract with wealthy heir Simon Trent, posing as his first love, Celine Klein, in exchange for a generous monthly allowance and exclusive study resources.