Quality Assurance in Another World manga volume 1 features story and art by Masamichi Sato.

Nikola is a village girl, 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. He's a part of an elite society called the "Seekers," created to address a series of maladies plaguing the usually peaceful world. Could it be that your life is nothing like what you thought? And what, exactly, is "QA?" Nobody's getting reincarnated here!

Quality Assurance in Another World manga volume 2 features story and art by Masamichi Sato.

After the destruction of his home by the troupe of immature and impervious debuggers, Amano joins Haga and Nikola's party to journey across this incomplete, buggy world so they can bring down the cruel debugger boss. Following Tesla's wish to rid the game of the irresponsible debuggers, the group infiltrates the boss's castle to steal his stone tablet. Unfortunately, they run into bug after bug as they progress through the dungeon. What awaits their party of three and what new truths will they find along the way?

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.

Quality Assurance in Another World manga volume 4 features story and art by Masamichi Sato.

The once powerless NPC, Gaydle, was modified by Yamanaka, another King’s Seeker and debugger like Haga. In return, Gaydle received an incredibly powerful body. Alas, the warriors of the mountains have had it with his barbarous ways and want him gone. It doesn’t take long for Haga and his party to be dragged into their deadly battle...one of many remnants of debuggers gone amok in this imperfect world.