Hell serves as a Musicart within New York Symphonica under Conductor Schindler, wielding a tuning fork that emits frequencies to command D2s—music-obsessed monsters whose movements she covertly directs. Her combat prowess manifests through feet transformed into whirling blades, channeling destructive force.

Flashbacks hint at her past alliance with Grand Maestro Sagan and the Musicart Heaven, jointly battling D2s during a crisis involving Takt’s father. This history blurs the origin of her destructive capabilities, leaving ambiguity: were they innate or twisted after aligning with Schindler?

A clash involving a cryptic tuning fork triggers her fusion with Heaven, their mutual impalement by the artifact dissolving both into Orpheus—a unified entity embodying Offenbach’s *Orpheus in the Underworld*. This merger crystallizes their dual roles, intertwining their powers into a singular manifestation of thematic duality.

Hell’s influence reverberates through pivotal moments: her tuning fork’s misuse by Schindler during a D2 onslaught claims Cosette’s life, catalyzing her rebirth as Musicart Destiny. These orchestrated attacks expose Schindler’s agenda to harness chaos for societal purification, positioning Hell as both weapon and unwitting architect of tragedy.

Though her narrative arc prioritizes her function as Schindler’s enforcer, her legacy evolves through Orpheus—a symbol of clashing ideals fused by sacrifice, echoing the series’ cyclical exploration of conflict and convergence.