Mefi, the princess of the devil's castle, was defeated by a hero and lost her place. Let's summon our wisdom, trap humans, and recapture the castle! The stage of the story is after the ending of a role-playing game... Mefi, the last boss who has been kicked out of the Devil's Castle, aims to revenge on the hateful heroes! However, there is very little that Mefi, who has lost her magical power, can do. Let's carry the wooden box placed in the stage to make a scaffolding, and make good use of tricks such as Tsurugiyama and punching gloves to clear it. When you get orbs and treasure chests that appear on a specific stage, you can recover your demon friends and stolen treasures, and the title screen that was alone also includes the lively elements that change more and more. Will Mefi be able to regain the demon castle stolen by the hero!?