Lady Rainicorn is Jake’s girlfriend/wife. She first appears in “Slumber Party Panic” when she is playing in the forest with Jake. She later makes a cameo appearance in “The Enchiridion!” as one of the candy kingdom civilians. She appears again in “My Two Favourite People” as a major character, in which Jake can’t handle having Lady and Finn, and fitting them in together so he calls on Shelby the Worm, who tells him to have a picnic with both of them, so that they can get to know each other. This completely backfires on Jake, as Finn and Lady become the best of friends and do loads of things without Jake like swooping down to buy free power rings and going to parties in the cloud kingdom. This causes Jake to call on Tiffany. In “Power Animal” Lady makes another cameo appearance as a civilian, and in “Her Parents” Lady calls Jake, worried about what he will make of her parents. She is seen in the title sequence being ridden by Princess Bubblegum. In “What have you done?” Lady Rainicorn and Princess Bubblegum are attacking the Ice King.