I Can Upgrade My Entertainment Infinitely

Traveling to a parallel world with an infinite upgrade system, Lu Chen found that no matter what he did, he could upgrade, and there was no upper limit! Just hum a few sentences and the system will prompt: Singing skill proficiency +1. Just type casually and the system will prompt: +1 for computer technology proficiency. Just masturbate a few times... Ahem, you know! "Lu Chen, is there anything else in this world that you don't know how to do?" "Yes, I can't show off!" System prompt: This pretender is good, and the skill of pretending is +1. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.