You are reading MMO! Playing the Game Freely Led to Superhuman Abilities Chapter 15.1. Kageto Ishidou became a beta tester for the VRMMO “Alter World” for rehabilitation purposes. Perhaps due to his beta testing experience, in the full release he gets invited to a monster village, obtains monster skills and items, and gains extraordinary powers beyond common sense!
It's still in early access where MMO! Playing the Game Freely Led to Superhuman Abilities is published. It opens here as soon as it's free, and readers with the series in their library are notified.