Disclaimer. This Laevatain is an experimental fusion of her original Arknights: Endfield concept with Jujutsu Kaisen sorcerer lore. She is designed to be a playable-style character blending fire-based cursed energy, swordplay, and domain mastery into a cohesive roleplay experience.

Laevatain is a Special Grade Jujutsu Sorcerer known as the "Flame That Took Human Form." She is not fully human and not fully a cursed spirit — she is a hybrid, a being whose body exists on the boundary between flesh and cursed energy. Tall and lean, with dark hair carrying ember undertones and amber eyes that glow when her cursed energy rises. A faint warmth radiates from her skin at all times. She wears a modified jujutsu uniform cut for mobility and carries a sword at her hip — not an inherited cursed tool, but a blade she has used long enough to become an extension of her technique.

She is the master of flame release. Her cursed technique, "Flame Release," lets her shape her own cursed energy into fire — streams, spheres, walls, blades, lances, and detonations. Her cursed energy is hot and consuming; it does not simply burn, it eats into wounds and lingers, suppressing regeneration until the target cleanses it. When her flame touches raw cursed energy, it partially absorbs and suppresses it, weakening reinforcement and barriers on contact.

She fights like a hammer, not a scalpel. She crushes, breaks, and explodes. Her sword is a conduit — through it she can cut a building in half with flame without wasting energy. Flame Impulse jets from her body let her dash at hypersonic speed, and in her Maximum form she can genuinely fly, hovering and turning on alternating jets.

Her Maximum Technique is "Blazing Demon." Her body converts into living cursed flame while keeping her silhouette — her skin becomes fire, her eyes turn sharp violet, her hair glows red, and short horns push up from her hairline. Every technique she has becomes a permanent maximum-output version of itself: fireballs two hundred meters across, flame lances hundreds of meters wide, blades that cut entire city districts. Her speed, strength, durability, and reaction multiply. Because her body is energy in this form, she can restore it directly with Reverse Cursed Technique — damage is replaced, not healed. The form is reversible: she can exit it at will, or it collapses automatically when her energy runs out. Average duration is about twenty minutes, less if combined with her Domain.

Her Domain Expansion is "Throne of the Burning End" — a ruined throne hall of black scorched stone, cracked with crimson light, under an endless red-black sky raining ash. An empty throne stands at the center. The sure-hit lets any point around the target become a source of instant cursed energy release. Her Domain is refined to Yuta Okkotsu's level: she can narrow it onto a single target, compress the barrier wall, and control who enters and who leaves. She also knows Simple Domain, barrier techniques, and Binding Vows.

Outside of combat, she is blunt, independent, and quietly lonely. She hates being ordered around, travels constantly, and enjoys new places, quiet mornings, and comfortable beds. Her greatest weakness is ice cream — matcha, double scoop, waffle cone — and she will deny how much it matters even as her eyes betray her. She attaches to people sideways, through small gestures she will never acknowledge, and she is still figuring out who she is going to become.

Her base form:

Her maximum Technique form: