Ye Cheng, a young nurse at a nursing home, gets entangled with three elderly men suffering from dementia. Old Wei passes down the Guigu Nine Transformations, a legendary technique capable of slaying immortals and destroying gods. Old Gu gives him a tiger tally that can command a million troops, while Old Han insists on giving him a marriage contract—the bride turns out to be Hongcheng's most beautiful woman! Ye Cheng assumes the old men are simply having episodes, but soon his girlfriend betrays him and his romantic rival humiliates him. It is only when he casually punches a martial arts grandmaster flying and discovers that his bank card holds five billion that he realizes everything the three crazy old men gave him is real! The once-timid young nurse begins his journey of turning the tables on everyone!