Hunter x Hunter - episode 43 - 27 Oct, 2000

After Gon's match, Killua decides that he will compete as well, eager to test his own strength. Gido, Sadaro, and Riehlvelt kidnap Zushi to bribe Killua into forfeiting his matches with the three of them, so they can get easy wins. However, Killua makes sure that they will fight honestly and don't cheat. Sadaro withdraws due to his fear of Killua, who he says, "lived in the darkest corners of the world." (Source: Wikipedia) Heavens Arena arc: (7/8)