Giselle
Duck contemplates who she is as Princess Tutu. Mytho notes that someone is calling him, and empathizes with the feeling that that someone wants to meet someone, recognizing the feeling to be loneliness. Fakir tries to convince Mytho that he does not need a heart; meanwhile, Duck gets chastised for interrupting Rue’s practice rehearsal. Duck vows to return Mytho’s heart to him, while denying that she loves him. Later, Rue reiterates Fakir’s words to Mytho, telling him that he loves her, and that is all he needs to know. Fakir tries to find out why Mytho is regaining his feelings. Mytho follows the aforementioned call and disappears. Duck and Rue go looking for him. They run into Edel, who tells them a story and directs them in the right direction, which enables them to find Mytho. He has found the ghost Giselle, who has been calling to him, and is offered a rosemary flower, which will allow Giselle to take him with her to the land of the dead. Rue tries to save him by dancing with Giselle, but fails. When Rue falls, Duck hides and transforms into Princess Tutu. Tutu reveals herself to Rue and dances with Giselle. She successfully gains the feeling of sadness from Giselle and gives it to Mytho. Drosselmeyer notes that the feelings returned to the Prince, thus far, are unhappy ones, and asks Tutu, “is this how you will restore happiness to the Prince?”
Aired 06/09/2002EP 4 - Giselle

Princess Tutu
In a fairy tale come to life, the clumsy, sweet, and gentle Ahiru (Japanese for 'duck') seems like an unlikely protagonist. In reality, Ahiru is just as magical as the talking cats and crocodiles that inhabit her town - for Ahiru really is a duck! Transformed by the mysterious Drosselmeyer into a human girl, Ahiru soon learns the reason for her existence. Using her magical egg-shaped pendant, Ahiru can transform into Princess Tutu - a beautiful and talented ballet dancer whose dances relieve people of the turmoil in their hearts. With her newfound ability, Ahiru accepts the challenge of collecting the lost shards of her prince's heart, for long ago he had shattered it in order to seal an evil raven away for all eternity.
Princess Tutu is a tale of heroes and their struggle against fate. Their beliefs, their feelings, and ultimately their actions will determine whether this fairy tale can reach its "happily ever after."
Note: Princess Tutu aired in two parts. The first part included 13 25-minute-long episodes, while the second part consisted of 24 12-minute-long episodes with a 25-minute-long final episode for a total of 38 episodes.