Nezutron is a fictional kaiju character from the Ultraman Arc series. It appears as an enemy monster rather than a human character, so it does not have a conventional first and last name. In the story, Nezutron serves as one of the threats Ultraman Arc and the defense forces must confront, contributing to the series’ action and monster-battle elements. Its presence helps establish the danger level of the world and showcases the hero’s ability to protect Earth from unusual and powerful anomalies.