Don't Make Trouble, I'm Really Not a Money-Splitting Boy.

This book is also called "Fuck with me and I'll give you immortal weapons" Su Chang'an, who traveled through time and space, had spent fourteen years peacefully in the Qingping world. He thought that relying on that simple copper coin, which could bring good luck and avoid disaster, his future life would be as peaceful as ever. Until one day, disaster suddenly struck him, but he disobeyed his master's instructions, resolutely carried the box full of immortal weapons on his back, and embarked on the road of wandering.