RENmaru is a Japan-based freestyle rapper whom his peers regard as the most gifted emcee in their crowd. A minor figure introduced in the spin-off series One Piece in Love, he squares off against Usopp in a rap battle themed around One Piece and staged outside a train station.
A young man whose light hair reaches a medium length, RENmaru sports a long, drooping cap shaped like a Phrygian hat, with metal buttons studding the band around its base. Curving white lines sweep across the front of his black jacket as well as the back.
Not much has surfaced about RENmaru's character, though his enthusiasm for music, rap above all, comes through clearly. Being labeled a public nuisance does not faze him, since he gathered with the other rappers by the station even as it bothered the people walking past, and he holds plenty of confidence in his own ability. A huge devotee of One Piece, he knew the franchise well enough to catch that Usopp had tucked away, inside a single verse, the name of every pirate sailing under Roger, yet his knowledge still fell short of beating the sharpshooter.

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Together with a host of fellow freestylers, RENmaru ran a cypher complete with speakers just outside a neighborhood station, swapping verses there every day across a fortnight and leaving some locals who used the stop on edge. Before long, Usopp confronted the group. Once he had overpowered RYU-HEY, BEZ, and a couple of other rappers, RENmaru came forward and proposed a sixteen-bar duel running two turns, its theme drawn from One Piece, pledging that the rappers would vacate the station should he lose.
The two volleyed verses back and forth, and when Usopp seemed to drop the theme during round two, the onlookers named RENmaru the winner. He declined the title, pointing out that Usopp had slipped each Roger Pirates member's name into his lines, and acknowledged his own defeat. Keeping his pledge, the rappers relocated their cypher the very next day to a place where they would cause no disturbance.
RENmaru is a Japan-based freestyle rapper introduced in the spin-off series One Piece in Love. His peers regard him as the most gifted emcee in their crowd.
RENmaru is a huge devotee of One Piece, knowing the franchise well enough to catch that Usopp had hidden the name of every pirate sailing under Roger inside a single verse during their rap battle.
RENmaru proposed a sixteen-bar rap duel with Usopp themed around One Piece, pledging that the rappers would leave the station if he lost. Onlookers named him the winner, but RENmaru pointed out that Usopp had woven every Roger Pirates member's name into his verses and conceded defeat himself.
RENmaru is a young man with medium-length light hair who wears a long, drooping Phrygian-style cap studded with metal buttons, paired with a black jacket marked by curving white lines.
RENmaru and a group of fellow freestylers ran a cypher outside a neighborhood train station in Hamamatsu, Japan, trading verses there every day for two weeks before relocating after losing to Usopp.
Looking for more on RENmaru? The One Piece Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Headquarters based on the One Piece anime series, manga, and official materials. Episode and chapter references are cited where applicable.
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