The dutiful young man made a mistake and swung a knife on a rainy night, transforming from a good citizen into a fugitive.
Desperate to plunge into the bottom quagmire, from being an ant who was trampled on by others, he was forced to become a bastard who licks blood from his knife edge.
If the world does not give him a way to survive, he will fight to open a bloody path.
This book describes the decline and transformation from an ordinary person to a desperado, entering a troubled world, embarking on a dangerous road, and never ending.