This is a world ruled by alien races, and the human race is weak.
The aliens are cruel and treat humans as livestock.
Shen Yeyuan was born in Wei Mo, relying on a desolate bone to survive step by step in this world full of crises.
As a guard and a soldier, his identity changes step by step, gradually revealing the truth of the world, and getting closer and closer to the real danger.
(This book does not have a female protagonist. The protagonist has a slightly cold personality and is not a love interest, but there is also brotherly love. The early plot is slow and lays the foundation for the subsequent plot.)
