Implanted with an extraterrestrial entity, a former space pest exterminator battles deadly alien threats--all to pay her bills! Sumire Ichigaya's got it tough. She's drowning in debt, surrounded by noisy neighbors, fighting for discount supermarket meals, and working a dead-end job exterminating space pests leftover from a failed alien invasion. It seems like things just can't get any worse--until she's abducted by aliens and wakes up with a monstrous new arm and a foul-mouthed voice in her head! Even Duskin's sudden attack of conscience isn't enough to put an end to Kiyoharu's merciless testing of Sumire's abilities! But when the battle between the clearly-not-just-an-accountant and the varmint is interrupted by the arrival of a deadly new enemy with her own devastating powers, will Sumire discover the strength she needs to fight back?.