Ask for the name of an animated cartoon

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One day, Fain and Ryan mistakenly took the underground escalator that suddenly appeared in front of the king. At the bottom of the kingdom of the sun, they met Princess Grace, known as the legendary princess ... and they got a "treasure box" and a "magic wand" that could be the magic princess respectively. They started a trip to help others, taking Grace and Pumo with them for many years ... This animation tells how the two princesses saved the earth. ...