Easley, alternatively called Ysley, is a deity formed around a century before the central narrative, originating from a spontaneous natural phenomenon rather than human devotion like his predecessors. He manifests as a teenage figure with short blue hair, glasses, and a green tracksuit adorned by yellow zipper details—attire reflecting his Idaten lineage.

Academically driven, Easley favors studying human history and ancient civilizations over combat preparation. His aversion to intensive training shifted after a demon nearly killed him, prompting his return to drills under Rin, a seasoned deity mentor. This pivot arose from his acknowledgment of demons’ growing threat and the need for readiness.

In battle, Easley leverages tactical analysis to counter physical shortcomings, targeting adversaries’ psychological or biological weaknesses. His unorthodox methods include tactics like disorienting foes with forced nudity or incapacitating them via aphrodisiac gas. He also employs calculated brainwashing strategies, though these reversibly undermine alliances, sparking retaliation from manipulated targets.

Among fellow deities, Easley often adopts a mentoring role toward Paula, guiding her through inexperience, while his rapport with Rin balances evasion of her strict regimens with tacit respect for their effectiveness. His ethics rigidly follow the Idaten directive to prevent humanity’s extinction, dismissing concern for human infighting or non-existential crises.

A self-driven quest to comprehend his anomalous birth as a spontaneously formed deity fuels his pursuits. This extends to scrutinizing demonic resurgence cycles and partnering with allies like Prontea to explore possible ties between Idaten and demonic entities.