Quality Assurance in Another World manga volume 3 features story and art by Masamichi Sato.

After the assassination of the boss of Asobing Inc., his former employees have taken over Bayle Castle, with Haga and crew in their crosshairs. Meanwhile, the mysterious, black-armored knight who infiltrated the castle has their eye on Haga for their own purposes. Uncertain of what "death" really means for the debuggers, the King's Seekers are now forced to choose how they're going to live in this unfinished, bugged world.