Gintama - episode 27 - 18 Oct, 2006

At the Women’s Wrestling Arena Shinpachi roots for Otsu the fighting idol, Kagura gets all excited and storms into the ring, and Gintoki watches his friends in shame. Okita also happens to be there, and leads the trio down to the slums where they discover an underground coliseum called the “Rengokukan.” Investigating the high authorities’ support for these death matches, Okita points out Kidomaru, Rengokukan’s deadliest fighter in a demon mask, suggesting the Odd Jobs may find out something from following him. The gang scouts Kidomaru’s house, but... (Source: Crunchyroll)