Those Years of Traveling with the Host Through Other Worlds

There is a system. Faced with baldness, if possible, I just want to retire! ! ! "Host!!! You are with the wrong person!!! Forget it, I will help you hack the mastermind, the task is completed." "Host... That's enough... Let's go to the next world!!! If he doesn't leave, he will die alone." 1V1 The cold system instructions are the only guide for Yan Nuo to travel through another world. She uses reason as a blade and boundary walls as a shield to walk in a quiet town with imbalanced rules...