Travel Through Time to Unlock the Servant System

Others travel through time and become a boss, while I travel through time and become a savage in the deep mountains and forests? Fortunately, my system can contract servants. Silver Wolf Wolf King? Contract! Stone-armored bear? Golden Eagle? Dark elf? Contract! Qilin mythical beast? Equal contract! When my legion of servants appeared, the whole world was shocked. The foreign fleet wants to use me as a weapon? Sorry, my rules are the rules.