Have You Ever Seen a Mage's Fist?

Traveling through a different world and facing elite-level monsters at the beginning? How do I fight this? Doesn't it mean that time travel comes with its own system? Where did my system go? System: System loading failure, please wait! I'm going to die soon, I can't wait any longer! System: It doesn't matter. Just restart it and it will be fine... What does it mean that I reopen it? Do you think this is a game? ...