Sumida

Sumida is a debugger trapped within the game world and a member of the Sakai Squad. Standing in direct opposition to the protagonist Haga—who works diligently toward proper debugging—Sumida instead revels in exploiting his debug privileges to run rampant throughout the game, going so far as to hunt down fellow testers. With an imposing physique and a belligerent nature, he excels at combat through skills such as wall-phasing and advanced charging techniques, making him a formidable antagonist in the early chapters of the story.