Xiehou Ta de Shaonu Shidai

Dong Cuican realizes that his terminally ill mother, Yan Jinyu, is running out of time. Desperate to save the woman who sacrificed her life raising him, he accepts a mysterious bargain: give up years from his own remaining lifespan in exchange for hers.

The deal works beyond anything he expected. Jinyu not only survives but returns physically to the age of twenty, suddenly facing a second youth filled with possibilities she once gave up. Cuican hides the terrible cost of the miracle and dedicates what time he has left to helping her live freely. Their roles begin to reverse, however, and keeping his secret becomes harder as his mother's new life grows brighter.