Raid Mirroring emerges as the primary antagonist in the series' latter stages, orchestrating a plot to forcibly install Fino Bloodstone as the next Demon Lord. He allies with former hero trainees Blaze Dis and Klein Art, who share his goal of reigniting human-demon conflict to restore purpose to those displaced by the Demon Lord's defeat.

He employs psychological manipulation, targeting Fino's vulnerabilities. Raid confronts her with a fabricated narrative claiming the original heroes allowed the Demon Lord's reign to sustain wartime prosperity, aiming to shatter her peaceful worldview and coerce her into accepting her demonic heritage. He intensifies this pressure by showing Fino an image of Raul Chaser from his hero trainee days, exploiting her emotional connection to Raul to amplify her distress.

Raid demonstrates significant magical prowess in combat, engaging multiple adversaries simultaneously. During the confrontation at the volcano entrance to the demon world, he launches lethal assaults against Raul Chaser and Airi Ortinet. Seara August intercepts these attacks, neutralizing them using enchanted household appliances from Magic Shop Leon, including a vacuum cleaner and a hair dryer. The battle culminates in Raid's defeat when Seara strikes him with a magic rice cooker, highlighting his power and his underestimation of weaponized ordinary objects.

His motivations stem from a belief that restoring the Demon Lord's lineage will revive societal structures disrupted by the war's end. His alliance with disillusioned heroes underscores his commitment, positioning him as a symbol of those clinging to the past. Raid's defeat occurs when Fino resists his influence with Raul's support, ensuring his plans ultimately fail.