I Just Traveled Through Time and You Want Me to Save the World?

My name is Chen Wan, and by the time you read this paragraph, I have already traveled through time. I don't know why I traveled through time, but as soon as I traveled through time, a mentally retarded system asked me to save the world. I, a time traveler, come with my own golden finger, so why should I use your retarded system? Use it as a stepping stone for me to become stronger!