You think you're living a quiet life in the countryside. Then, one day, a dragon shows up, and everything changes--not because of the fire-breathing serpent, but because of Haga, the man who shows up and "debugs" the situation. Can it be that your life is nothing like what you thought? And what, exactly, is "QA?" A thrilling isekai action fantasy from a fresh, new perspective!Usurp the ThroneAfter 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.