Bury Me in the Belly of a Wolf

In an unknown world, a child struggles, just wanting to see his mother before he dies. A creature called wolf in the past world suddenly gets the seeds of revenge. Lay out, grow, and use everything in order to crawl step by step toward the world where I was once an ant. This book will describe more cruel scenes, human nature and darkness, and will set up more foreshadowing in the early stage. You will be awesome if you guess it right~