Born as Ignis D. Rikushido, his name was changed by his mother at a young age to protect him. Due to this, he is popularly known as Riku Xanthe. Riku is an nineteen-year-old Infernal who set out to become a pirate, driven by his goal to end his father's life. Riku is an expert dancer, and a professional illusionist. Riku is also the Sailing Master, Navigator, and Cartographer of the Poppu Bando Paire-tsu (Pop Band Pirates). As such Riku is one of the main protagonists of One Piece of Music.