After the departure of Knuckleduster without saying anything to anyone, Koichi continues to act as Vigilante for Naruhata, facing evil doers alone.
One day, the Villain Factory releases Kirihito Kamachi, a regular Trigger consumer whom they transformed into a Next-Level Villain with a Mantis-like body. Kirihito rampages down the streets of Naruhata, unleashing panic among citizens. Despite not having his master Knuckleduster by his side, the Crawler appears, prepared to face the evildoer.
Koichi tries to stop the villain, but Kirihito proves being more powerful and dangerous than he thought. Being overwhelmed, Koichi tries to run away but Kamachi is speedy too, and he chases the boy down the street. Koichi meets Jube Namimaru and Ichimoku Samazu, and ask them to help him, but they don't want interfere and wish him good luck.
While Koichi dodges Kirihito's attack, Pop☆Step appears at the top of a building and begins advertising a new show at the Marukane Department Store. This angers Koichi, who tells her to stop advertising and to call for a hero or the police to deal with the villain. Pop☆Step replies him that she had called Captain Celebrity already.
Captain Celebrity appears, and choreographs his introduction to the public's joy and Koichi’s annoyance, who continues to dodge Kirihito's attacks. Koichi asks him to skip the intro and help him once against Kirihito. The hero swoops in to fight against the villain, and easily defeats him in a few seconds.