Dream Back: I Want to Protect Everything

[Physical time travel][No heroine][Plane showdown][System] When people are in despair, they all hope for a light to illuminate themselves. After twelve years of despair, I should grab everything and protect everything. My name is Liu Wanze. Remember, I will smash it all with my fists and protect the people who should be protected. Who should I protect in my life? The introduction is too weak, please move to the main text. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.