Hanabi Ichijo, Yuito Sumeragi’s spirited childhood friend, radiates cheerfulness and an unyielding sense of justice. Her impulsive actions often mask a deeply compassionate core, as she prioritizes others’ well-being over her own emotions. Born after her father’s disinheritance from the Ichijo family, her ties to the Sumeragis persist through her uncle’s role as OSF Hospital director.

Scouted into the OSF Academy, her path diverged from Yuito’s due to separate training tracks, but fate reunited them as comrades in Captain Seto Narukami’s platoon. As a pyrokinesis specialist, she commands fire with techniques like Flame Pillar and Explosion, wielding her Prometheus Torch to ignite enemies and amplify her team’s attacks.

Though silently harboring affection for Yuito, Hanabi’s resolve wavers between duty and desire, especially as his reliance on Red Strings threatens his health. Post-conflict, she champions his political goals and Kasane’s lunar mission, yet her heart remains guarded.

Her Guardian Vision shields allies from harm, while Assault Vision synchronizes deadly strikes. Strategically, her flames purge burns from teammates and exploit vulnerabilities in heat-sensitive foes like Fuel Pool variants.

Beyond the battlefield, her bonds with Nagi and Alice hint at deeper connections. Adorned in a red hairband and functional Makoto-style armor, her fiery persona mirrors her namesake—*fireworks*—blending brilliance with explosive force.