Domitianus rules as Emperor of the Holy East Revlon Empire, marked by dark red hair and grey eyes. His reign pursues military expansion and conquest, demonstrated by his forces' capture of Tisheng city, where he deployed monsters as instruments of warfare to achieve strategic goals. He governs ruthlessly, prioritizing imperial dominance and control over territories.

The Holy East Revlon Empire under Domitianus supports and benefits from the transcontinental slave trade, colluding with the dominant Holy Hilk Kingdom. Together, they orchestrate large-scale enslavement operations targeting non-human populations like elves and beast-people. Domitianus's policies directly contribute to widespread suffering and conflict across regions.

As a central antagonist, Domitianus embodies systemic oppression. His imperial ambitions fuel geopolitical strife affecting other characters. His role remains consistently that of an expansionist sovereign whose actions perpetuate violence and exploitation against marginalized groups.