Princess Peach is trapped in the dark dungeon of Bowser’s castle. One night, she happens to get an outside message via an empty bottle that reads “Drink me.” Peach drinks and realizes that her body is changing. Her arms become muscular and her torso is as hard like iron, and Princess Peach grows in size. She escapes from the dungeon and destroys the castle, and she is free. Princess Peach returns to the Mushroom Kingdom.