In 20XX, pests have overcome all pesticides, and their unprecedented resistance has caused them to become rampant and one of the biggest hazards to future society. In order to deal with this serious situation, a certain technology company has developed a small robot to catch and kill pests. The robot Hoihoi-San (voiced by Rie Kugimiya), who is short (about 10cm) and looks like a cute little girl, is decisive and agile, becoming the biggest nemesis of pests in the new era and the most popular technology product among home residents. It was late at night and everything was silent. In the dark room, Hoihoi-San walked steadily and accurately eliminated all pests in sight, and other robots that had ill intentions towards her also became sniper targets. The little robot is very repulsive, and I guess as a master, it must have suffered a lot...