Prologue.

Small and weak, I was always easy prey for them. Struggling to survive in a world of the strong, I faced the grim truth of human nature.

The human nature is inherently evil.

My life proved the teaching that humans are inherently evil. Those who tormented me and disregarded my existence. I wanted to ask the monsters wearing human masks what true justice is.

The seed of revenge that bloomed in my heart took root deeper and deeper. Yet, whether this path leads to the realization of justice or merely down a road of endless vengeance, even I could not tell. Despite this, I resolved.

To become an entity capable of punishing the monsters in human guise.