Ryuichi is the captain of Night's Thunder Pirates. He currently occupies the silver seat of the Yoemon Family and is the leader of the crew's Ryuichi Army division. He is the proprietor of the Grand Pirate Games of Parete di Roccia (Literally meaning: Rock Face), where he earned his title as the "Rock Faced Hero" (ロックヒーローに直面していました Rokkuhīrō ni chokumen shite imashita?). These acts, amongst other things, have given him his current bounty of 500,000,000, one of the highest past or present bounties in the series.