Robison Caetano di Sciuva, also known as "The Brazilian Supernova", was a Brazilian martial artist who competed in the underground coliseum of Sai no Kawara in Kabukicho, Tokyo during the 2000s. He rose to immense popularity in the underground fighting scene, and he considered ways to give back to society using his beefed-up stamina and formidable leg power. On 17 December 2006, he was defeated by Kazuma Kiryu after Goro Majima persuaded Kiryu to return to competing in the coliseum's tournaments.