Haiji Sawada

A boy who accompanies a group of middle schoolers who make fun of Hazama, harassing him over his vigilante heroism at the outset of Hazama's career as Samurai Flamenco.

He becomes the final villain of the series, explaining to Hazama six months after the battle with Alien Flamenco that he was the one who first uploaded videos of Hazama as Samurai Flamenco to the internet. He had no passion for life until encountering Samurai Flamenco, then became obsessed with becoming Samurai Flamenco's nemesis, faking his death with the agreement of his parents in order to spend a year preparing to take on Hazama. His goal was to do things that Hazama disliked, aiming to shape the hero into a 'Samurai Flamenco Darkness'.