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!
Surprise! Tesla has a little brother—Alba—another Meta-AI who is responsible for the Principality of Sai. Unfortunately, when Haga’s party opposes Alba’s rule, Alba teleports Haga and Amano to the thousandth floor of the underground ruins nicknamed “The Diamond.” What awaits them is a series of terrifying trials and a chance meeting with a new debugger!