Sacchi

Searchmaton, nicknamed Sacchi (after its shortened name), is a bot and antivirus software deployed by the Cyberspace Administration of Daikoku. Its task is to debug and maintain the virtual side of the city. Its secondary function is to seek out and disable illegal AR devices, software, and viruses, making it a menace to the characters of the series. Searchmaton can deploy up to four spherical drones to aid in its task. While Searchmaton can patrol the city streets freely, it is prohibited to enter private property such as houses, and other spaces such as temple grounds and schools, because they lie outside of the responsibility of Daikoku's Cyberspace Administration.

The protagonists utilize this and other predictable aspects of Searchmaton's behavior to escape its grasp. Searchmaton, striking terror into the hearts of children, is ironically painted with a smiley face and punctuates its violent attacks with the cute catch phrase "Boku Sacchi!" which Yasako's father had a part in developing.