Black Iczel operates as the sentient robotic combat partner of Nami Shiina, merging with her to form the battle unit Iczelion Black. Tasked with defending Earth from alien threats, they belong to a collective of Iczels designed to bond with human counterparts. Nami complements Black Iczel’s tactical precision as a bold rock singer and rave dancer, her assertive demeanor synergizing with the unit’s aggressive combat protocols.

Specializing in gravity manipulation, their arsenal includes the Gravity Barrier Ram for defense, the Gravity Well to immobilize targets, and the Implode Gravity Vortex for area destruction. Dual beam swords serve as primary armaments, with the Gravity Slash technique channeling all suit energy into a single devastating strike. This maneuver maximizes offensive output but leaves the unit temporarily exposed, prioritizing overwhelming force over sustained defense.

In joint operations, Black Iczel assumes command, critiquing allied units’ tactical missteps while leveraging superior barrier technology and close-quarters expertise. Multidimensional engagements against adversaries like Cross and Chaos test their adaptability, notably during a clash where Nami directs condensed gravitational energy through her weapon to obliterate a Void entity, disregarding the technique’s instability.

Documented records outline no explicit origin narrative for Black Iczel beyond its partnership with Nami Shiina, focusing instead on combat operations within the core OVA storyline. The narrative maintains a strict emphasis on battlefield dynamics and coalition-based defense strategies, avoiding extended lore or alternate universe explorations.