The Iczels are sentient robotic entities engineered to merge with human partners, forging armored warriors called Iczelions. Created by the Iczers, an advanced alien species, they were forged to battle destructive machine life forms spawned by Big Gold, a recurring cosmic threat. These entities deploy across the universe, enabling planetary defenders to wield Iczels as symbiotic armor, channeling power rivaling their creators.

Each Iczel adapts a personality reflecting their human counterpart, with variants categorized by color and combat specialization: Normal Type (orange) serves as the baseline, Black Type manipulates gravity, Gold Type commands wind and earth, and Silver Type wields teleportation and boomerang armaments. Activation hinges on synchronization with partners, unlocking modes like Burst Acceleration or Teleportation to amplify offensive and defensive prowess.

A radio drama bridging *Iczer-3* and *Iczelion* reveals Iczels dispatched to Earth by Iczer-3, interlinking timelines and solidifying their role as planetary guardians. This narrative establishes their origin as defense systems distributed to empower locals against threats like the Geas—resource-harvesting aliens commanded by Chaos and Cross. The drama also integrates Nagisa Kasumi from *Iczer-3* as an Iczelion, deepening their lore within the franchise.

In the OVA, Iczels act as assertive mentors, compelling hesitant partners like Nagisa Kai to accept their destinies. They orchestrate transformations into armored states, deliver tactical guidance mid-battle, and coordinate joint assaults between Iczelions. Modular weaponry—beam swords, energy barriers, and elemental projectiles—complements each type’s combat approach. Though mechanical, they exhibit empathy and tenacity, frequently debating strategy with partners while prioritizing planetary survival above all.

The documented scope remains confined to the OVA and radio drama, with no confirmed expansions in subsequent media.