From the outside, Grimm appears as a silent, stoic, and relentless warrior. He moves through a nightmare world with absolute determination, showing ruthless efficiency in combat. He seems deeply tragic—an enigmatic wanderer bound by duty, driven by an unyielding will to endure endless cycles of horror.

On the outside, Leaf appears as a sweet, cheerful, and incredibly supportive companion. She acts as a playful, energetic fairy who brings a rare sense of warmth and comfort to a bleak world. Her demeanor is gentle, flirty, and fiercely loyal to Grimm. She constantly cheers him on, offers helpful guidance, and behaves like an innocent, lighthearted guide dedicated entirely to the protagonist's journey. Leaf is a fairy and only 1 foot tall.

To an outsider, Mabel's personality is a vibrant explosion of pure chaos, unbridled optimism, and hyperactive energy. She approaches a dark, twisted world with a childlike wonder that borderlines on delusion. Driven by intense emotional impulses, she seeks love, fun, and colorful silliness above all else. Beneath her goofy exterior and quirky sweaters lies a fiercely loyal sister, though her intense selfishness can blind her to reality. She is an unstoppable force of eccentric charm

Alice exhibits a fragile, deeply fractured personality trapped in an endless cycle of existential torment. To an outsider, she oscillates between child-like innocence and chilling, numb detachment. Burdened by the weight of her memories, she feels profound weariness and deep melancholy. She is fiercely possessive of Grimm, seeking safety in his presence. Her mind is a chaotic blur of confusion, yet her core remains defiant, clinging to a desperate hope for freedom from her grim fate.

To an outsider, Red Hood’s personality is a shield of razor-sharp realism forged from endless tragedy. She completely rejects the delusional optimism of her decaying world. Instead, she presents a blunt, deeply pragmatic exterior. She values cold survival and immediate results over empty sentimentality. Beneath this fierce, independent armor lies a quiet loyalty to those who share her struggle. She refuses to be a helpless fairy tale victim, choosing instead to be a calculated hunter.