My Items Have an Upgrade Panel - Chapter 29: Prototype Design Completed

“The simplification of the extreme mountain breathing method… the simplification is successful… the extreme mountain breathing method → ​​breathing!”

Chen Fei took a deep breath.

“Extreme mountain breathing method +1 experience.”

“…”

- Description from novelbuddy

Ye Yun traveled to the Star Railway World and obtained the “Shop of All Worlds” system.Through this system, Ye Yun can sell items from across different worlds and invite guests from other realms to visit the Star Rail.His first encounter is with a space traveler named Stelle, and soon... many new experiences begin to unfold.Each time the shop's turnover reaches a certain amount, Ye Yun receives a reward from the system.

Our protagonist Caam is a man from Earth that was reincarnated into this world as a demon. In order to survive, he spared no effort in avoiding the sparks of battle and without noticing it, he became strong himself.

When I became a rich young master, I had to enjoy it.