Goemon Abashiri is the eldest son of the Abashiri family, a criminal clan famed for destruction. He relentlessly pursues women, particularly his half-sister Kikunosuke Abashiri, engaging in voyeurism, stealing her undergarments, and experiencing recurring erotic fantasies about her. His obsession drives actions like sniffing her clothing and undertaking missions fueled by lust.

Despite his comedic role, Goemon possesses exceptional combat skills. He exhibits reflexes allowing him to perceive bullets in flight, catch them midair, and flick them back with force enough to penetrate iron. He climbs walls with Spider-Man-like agility and employs unconventional techniques such as the invasive "1000 years of death" jutsu. However, his effectiveness fluctuates, and he is sometimes overpowered by seemingly ordinary adversaries.

Throughout the OVAs, his actions propel both plot and comedy. During the family's bank heist, he uses a butterfly net to steal money while dodging bullets. Later, infiltrating Paradise School to rescue Kikunosuke, he becomes distracted by chances to grope characters like Yukiko Shirane. His schemes often culminate in humiliation, such as being punched through walls or left bound and helpless while demanding rescue.

In crossovers, Goemon retains his hypersexualized persona. During the golf tournament in *Harenchi Golfer Jubei*, he demands his father use psychic powers to disrobe female opponents. In *Cutie Honey vs Abashiri Family*, disguised in a mask and codpiece, he harasses Midori Akari by ripping her clothing and lifting her skirt. His actions provoke physical retaliation, like a helmet strike, yet he persists in pursuing nudity throughout conflicts.

His design includes a distinctive mask outfit and horned crotch piece in later manga chapters. Background notes indicate inspiration from Ken Ishikawa. While lacking profound development, his narrative function centers on parodying censorship controversies through exaggerated eroticism and situational failures.