Interstellar: Starting from Becoming a Mercenary

In the age of the universe, it has been thousands of years since mankind entered the age of space navigation. Social wealth has been further divided. There are constant conflicts between various empires in the universe. Human beings compete with the mechanical race, the Zerg race, the angel race... Various races compete for living space. The long-term war has spawned a series of subsidiary industries, including military industry, energy industry, medical industry, precious metal industry... The most popular one is the mercenary industry, because this is the fastest way to climb up from the bottom, as long as you live... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.