The imprisoned orc is found in the fifth room of the prison dungeon. He is to the east of the semen extractor machine. Nona must have sex with the imprisoned orc to continue the game. When Nona approaches the orc while unclothed the orc will grab her and fill her with cum. Nona then must deposit this cum into the collector in order to activate the button.
Nona being fucked by the imprisoned orc.