The famous opera set in a fictional Japanese town called Titipu and tells the story of Nanki-Poo, the son of the Mikado, who is in love with Yum-Yum but is forced to flee when he is condemned to death for flirting. He ends up in Titipu, where he meets Ko-Ko, the Lord High Executioner, and they come up with a plan to save Nanki-Poo's life. The opera is a satire of British politics and society, and it is full of humor, wit, and memorable songs.