Gilbert and Sullivan change the characters, which Sullivan found artificial and lacking in "human interest and probability", as well as being too similar to their earlier opera, "The Sorcerer". As dramatised in the film "Topsy-Turvy", the author and composer were at an impasse until 8 May 1884, when Gilbert dropped the lozenge idea and agreed to provide a libretto without any supernatural elements. The story focuses on a "cheap tailor," Ko-Ko, who is promoted to the position of Lord High Executioner of the town of Titipu. Ko-Ko loves his ward, Yum-Yum, but she loves a musician, who is really the son of the
Gilbert and Sullivan of trade between England and Japan, Japanese imports, art and styles became fashionable in London, making the time ripe for an opera set in Japan. Gilbert said, "I cannot give you a good reason for our... piece being laid in Japan. It... afforded scope for picturesque treatment, scenery and costume, and I think that the idea of a chief magistrate, who is... judge and actual executioner in one, and yet would not hurt a worm, may perhaps please the public." Setting the opera in Japan, an exotic locale far away from Britain, allowed Gilbert and Sullivan to satirise British politics