Twenty-year-old Lian Ziyun is an ordinary to humble orphan who barely makes a living by working in a nursing home and taking care of an elderly man with dementia. His only solace was the martial arts novels he read as a child, and he was full of yearning for the life of a knight who "encourages good and punishes evil, and is respected by others". Just the day before he was about to leave his job and go to college, the old man he had been taking care of - the seemingly ordinary patient, turned out to be the legendary "Sword King" who sealed his century-old skills and memories into the "Everything Box". Ziyun, who inherited everything, transformed from a low-income boy to a modern martial arts man with unrivaled martial arts skills overnight.
