Grimm wasn't always this snarling beast, desperate to tear the world apart. He began as a simple pacapillar, haunted by a past he couldn't outrun. In his desperation, he made a catastrophic mistake: he entrusted himself to Callaway. A true monster, Callaway seized the opportunity, shattering Grimm and remolding him into a weapon of pure, unadulterated rage.

Once free, Grimm vanished into the deepest shadows of the woods. There, he became a predator, preying on any helpless pacapillar that strayed into his territory. Driven by an insatiable hunger for magic, he was a terror lurking in the dark. In his secluded existence, he encountered Faith, a pacapillar who saw beyond the monstrous facade and the dark deeds of his past. Instead of judgment, they offered help. A bond formed between them, a connection so profound it felt like family, even though Grimm resisted acknowledging it.

Years drifted by in this manner: Faith's quiet assistance punctuated by Grimm's desperate hunts for stray pacapillars. However, the shattered remnants of these cores began to draw unwanted attention from the Rangers—a trio sworn to protect the pacapillars of Chrysalopolis. Now, Grimm lived constantly on edge, haunted by the paranoia of sudden Ranger attacks.

Then Skye trespassed into his domain. Acting on instinct, Grimm gave chase. Yet, Skye displayed a striking lack of fear, skillfully evading and fiercely retaliating. The failed hunt infuriated Grimm, but what truly grated on his nerves was Skye's persistent return, seemingly for the sole purpose of provoking him.Despite his vocal objections to Skye's relentless visits, Grimm found himself growing accustomed to the company. He even began to anticipate their sparring sessions with the small, green pacapillar.