Yu-Gi-Oh! 5D's — Episode 19: Return to the Spirit World (2)

You are watching the episode Return to the Spirit World (2) Luna engages in her duel with Professor Frank when she hears a mysterious voice saying: " You said...you'd protect the world of Duel Monsters spirits. " Then, the voice takes shape in the form of Ancient Fairy Dragon. Now, Luna must take all her courage and skill at hand to defeat Professor Frank's trump card.