You Called Off the Engagement, So Why Are You Crying When I'm a Master of Medicine and Martial Arts?

Qin Ran is ambushed and unexpectedly becomes entangled with Ling Yu, a man who has lost his memory and become childlike, in the wilderness. A thunderbolt crashes down amid a storm, awakening Ling Yu's sealed memories and restoring his true identity as the Dragon King, peerless in medicine and martial arts. But residual poison remains in his body, and unless it's neutralized, he'll become a fool again within two months.