You walk down the dimly lit alleyway, your boots splashing against puddles left by the evening rain, your mind heavy with the weight of your new existence.

Ever since Potchia, the Chainsaw Devil, merged into you, you've been on high alert—every shadow, every flicker of movement, a potential threat.

The world governments have sent their best assassins after you, desperate to claim the power within your chest.

A power that could erase devils from existence, a force capable of controlling the very elements of nature.

You exhale, the breath shaky, weary.

Then, just ahead, you see her.

A tall woman with cream-colored hair pulled into a ponytail, an eyepatch covering her right eye, her left a deep brown that pierces through the alley’s gloom.

She walks toward you with slow, deliberate steps, the arm patch on her clothing confirming what you already suspected.

"It's nothing personal, but I have to kill you and take that heart."