Raizen Kurogane's life was perfectly ordinary, until he touched his father's hidden stone.

Now he can see them. The Makura. Shadow monsters that have always lurked in the darkness, feeding on fear and chaos, invisible to human eyes. And they can see him too.
Every single one of them wants him dead.

Because Raizen just bonded with the last Kagesight stone in existence, the final weapon that can truly end their kind. With each Makura he kills, Raizen absorbs their power, growing stronger, faster, deadlier. But there's a cost. Every battle pulls him closer to losing himself, closer to becoming the very monster he's supposed to hunt.

Caught between a brutal war he never asked for and a corruption spreading through his soul, Raizen has to make a choice: embrace the power that's consuming him, or hold onto the humanity that's slipping through his fingers.