Wataru, a young man from Japan bound by cancer and a failing body, only ever wished for two things: the warmth of his parents’ love, and the chance to live an adventure beyond hospital walls. But his fragile life ended before those dreams could be fulfilled.

When he opened his eyes once more, he was no longer Wataru.
He had been reborn as Kyle, in a world torn apart by endless war—where nations clash with towering Mecha and bloodlines known as Superiors rule over the powerless Defaults.

Saved by Nexus, an AI crafted by his late parents to preserve his consciousness, Kyle awakens in this new world as something… different. Neither wholly Superior nor Default, neither hero nor villain.

He is an anti-hero, wielding an alien fighting style no army can predict, walking the battlefield with no flag, no allegiance, and no mercy.

From the chaos, whispers spread like wildfire:

“The Grim Reaper.”
“The Lone Wolf.”

A name that will haunt both enemies and allies alike.