In 2006, Izubuchi debuted in the pro wrestling promotion Hustle, where Sumitani was working as his character Razor Ramon Hard Gay.

RG then became a regular wrestler for the Hustle Army, but he proved to be a comically weak contender and spent his early years being brutally beaten by each opponent he faced.

He used a humorous wrestling style, wearing a red fundoshi under his tights (which he would display to perform his signature stink face) and selling exaggeratedly whenever he received an atomic drop.

It was through wrestling in their college years, that Izubuchi met Masaki Sumitani, with whom he would later form the comedy duo "Razor Ramon", the name inspired by the character portrayed by professional wrestler Scott Hall, in 1997.

Razor Ramon made their TV debut in 1999 and won the Judges Special Award in the ABC Owarai (Comedy) Grand-Prix in 2000.