Jun Ogawauchi debuted as a member of the T2P project, a particular branch of the Toryumon system led by Último Dragón, wrestling his early career in Mexico.

However, fans were shocked when Takamichi Iwasa, who had been appealing to become the 5th member, was denied the spot, and the place was actually given to the rookie Ogawauchi on May 11, 2003,[1] who was renamed to simply JUN.

After a slow start where he struggled to gain acceptance, an impressive performance in the 2003 Rey de Parejas lead to an increase in his charisma and alterations in his ring style to fit in with his new team-mates.

Ogawauchi retired from active professional wrestling in February 2004, tearfully citing herniated cervical vertebrae which were causing numbness in his left arm.

To fit with the El Dorado theme, Ogawauchi has taken to dressing as a pirate for his ring announcing duties, donning a look reminiscent of Jack Sparrow.

El Dorado ceased operations in December 2008 due to dwindling fan interest caused by the departure of the Aagan Iisou stable.