In a past life, Rainie Gill joins her fiancé Hayden Chow on a snow-covered mountain expedition. When Quinn Sloan, a billionaire's mom, suffers from severe oxygen deprivation and loses consciousness, Hayden—despite being the team leader—refuses to help. Manipulated by Wanda Cheney, he even attempts to let Quinn die. Unable to stand by, Rainie secretly calls for rescue. Quinn Sloan survives. Wanda is later punished by the Sloan family, while Rainie is accepted by Quinn as her sworn younger sister. But on Qingming Festival, Hayden betrays Rainie—pushing her off the mountain to seize her fortune and avenge Wanda. When Rainie wakes up again, she finds herself reborn at the very moment when Quinn Sloan’s life is first in danger. This time, Rainie will take control of the vast fortune herself—and watch as Hayden Chow and Wanda Cheney suffer the consequences of their own betrayal.
