He introduced the gimmick of a parodic mixed martial artist, wearing a red fundoshi along with MMA gloves and performing sexual antics to disturb his opponents in the ring.

Maguro had feuds with Tsubo Genjin and Junji Tanaka before turning heel in 2005 and joining the STONED faction founded by Kagetora and Gamma.

After the fall of Hell Demons, Maguro became a founding member of the Kowloon stable, directed by Fujita Hayato, and formed a tag team with Takeshi Minamino, which was called Tonery Family.

However, in 2017 Tonery Family broke when Maguro was betrayed by Minamino, who left Bad Boy to form the Super Stars heel stable with Rui Hiugaji.

He had a brutal feud with Mototsugu Shimizu in which they destroyed much El Dorado equipment and were ordered to pay off their damages by general manager Noriaki Kawabata.