Qin Ye Qian Qi Ye You Sa

Mentally challenged Qin Nian Wan gives birth after an arranged car accident, which triggers her memory and restores her cognition. Rescued by her original family, she returns to a life of privilege as Shen Yin Yin. Years later, she goes head to head with the powerful Qin Wang Yan as he invades her home, desperately seeking treatment for his ill son. He doesn't recognize her, but she remembers him clearly.
(Source: Lady_Dragon at MDL)