Gass, Guardian of Time, exists outside celestial hierarchies, tasked with preserving dimensional temporal boundaries. Clad in enigmatic Middle Eastern-inspired attire, his "Outsider" designation grants unparalleled authority over space-time mechanics. When a celestial energy crisis erupts, he deliberately permits Munto to breach temporal defenses and seek Yumemi Hidaka, fully aware this choice will fracture his physical form. Progressive bodily decay follows, accelerated by prior neglect of guardian duties during conflicts. Despite deterioration, he persists in defending the Magical Kingdom, accepting the irreversible toll.

A pivotal act of sacrifice sees him channel residual power to Munto through direct contact, imprinting a lasting mark tied to his abilities. Subsequent battles against Gntarl’s forces compound his decline, culminating in arm loss that marks his diminishing capacity to enforce order. Though a figure of austere duty, he displays unexpected compassion in interactions with Irita, their connection undefined yet perceptible. He forges strategic alliances with adversaries like Leica, bridging factional divides through mutual respect.

Once capable of single-handedly confronting armies, his escalating vulnerabilities eventually necessitate reliance on allies. Celestial authorities revoke his Outsider status after repeated violations of cosmic taboos, intensifying his physical fragility. Undeterred, he expends dwindling strength to stabilize collapsing dimensional networks, aiding Munto’s final stand. His arc weaves duty’s burden with the price of defying immutable universal laws, embodying sacrifice as both necessity and consequence.