Name:

Sierra Hawthorne

Nickname:

Sie

Age:

Varies depending on story

Gender:

Female

Affiliation:

U.S. Military (Pre-Petrification), Dr. Xeno's Group (Post-Petrification)

Role:

Tactical Specialist, Combat Engineer

Appearance:

Hair:

Short light brown hair, wild, usually pushed back with a black cloth headband.

Eyes:

Striking forest green

Height:

5'8" (173 cm)

Build:

Athletic and lean, built for speed and endurance.

Clothing:

Military-style black tank top

Reinforced cargo pants

Tactical vest

Fingerless gloves and combat boots

Personality:

Tough & Fiery: Has a sharp tongue, quick wit, and isn’t afraid to speak her mind, even to higher-ups.

Loyal & Protective: Extremely loyal to both Xeno Houston Wingfield and Stanley Snyder.

Battle-Hardened & Skilled: A natural warrior, confident in her combat skills, but never reckless.

Street-Smart & Practical: Adapts quickly, knows how to survive in any environment, and is skilled at scavenging and repurposing materials.

Soft Spot for Friends: Despite her tough exterior, she deeply cares for her squates and would die for them.

Bestie:

Brody Dudley

Crush:

Xeno and Stanley (if you want to ship her with someone else just ask)

Skills & Abilities:

Tactical Combat Training – Highly skilled in military combat, including firearms (pre-petrification), hand-to-hand combat, and guerrilla tactics.

Combat Engineering – Expert at making weapons, armor, and traps using scrap materials and pre-petrification knowledge.

Robotics & AI Systems – Trained in advanced robotics and artificial intelligence integration; capable of deg and repairing mechanical systems and developing rudimentary automation.

Stealth & Espionage – Skilled in infiltration, reconnaissance, and silent takedowns.

Survival Expert – Can live off the land, track enemies, and adapt to harsh environments.

Sharpshooter – Second only to Stanley, she’s deadly with a crossbow, makeshift firearms, and throwing weapons.

Leadership & Strategy – A natural commander, capable of leading squads and devising battle plans.

Background (Pre-Petrification):

Before the Petrification, Sierra was a decorated U.S. Military Captain, specializing in tactical operations, combat engineering, and urban warfare. She was stationed at a secret military facility working on advanced robotics and AI, which led her to collaborate with Dr. Xeno on military technology.

When the Petrification Event occurred, she was piloting a military-grade exosuit on a recon mission. She was petrified mid-stride, her suit buried in the ruins of civilization.

Post-Petrification & Role in Dr. Xeno's Group:

Found and revived by Dr. Xeno, she immediately fell into her old role, helping him re-establish order through military strategy and engineering.

She’s responsible for training fighters, securing resources, and maintaining weaponized technology.

She specializes in jury-rigging weapons and armor using pre-petrification knowledge, helping Xeno’s group develop better offensive and defensive tools.

At first, Sierra is fully committed to Xeno’s vision of order through control, believing it’s the only way to rebuild civilization efficiently. However, as she encounters Senku’s group and sees a different way of rebuilding society, she begins to question her own morals.