The Naruhata Vigilantes are a ragtag group appearing as the primary characters in the spinoff series Vigilante - My Hero Academia: Illegals.
The group was formed by the vigilante Knuckleduster, who saw potential in Koichi Haimawari when he tried to save Kazuho Haneyama. He took Koichi as his apprentice, training him into "The Crawler" and Kazuho, as Pop☆Step, joined the team to help Koichi. Sometime afterwards Knuckleduster takes to living in Koichi's apartment with Kazuho visiting them there often as well. Their main threats are the group behind the distribution of the drug Trigger which boosts the power of people's Quirks but also weakens their sense of reason.