Night and Day, You Are the Ones! Ash, Goh and Chloe visit the Eclipse Castle in the Johto region to take part in a festival. Once there, Ash and Goh are told the backstory of the Eclipse Castle by Helia, the current lord of the castle. Meanwhile, Chloe encounters Soleil after Chloe's Eevee is rescued from falling down a cliff by Soleil's Espeon. The two girls realize that they are clone of each other. Reuniting with Ash and Goh, Soleil tells the trio the history of her Espeon and Umbreon, and informs them that she will be named the new lord of the castle. While Chloe leaves to prepare for the festival, she is kidnapped by someone who mistakes her for Soleil. The mysterious trainer returns to the Eclipse Castle, who reveals himself as Ilunas, and demands that he be named lord of the castle. However, Ash and Goh arrive along with Chloe. A battle between Chloe and Soleil against Ilunas ensues, resulting in Ilunas defeat. Soleil approaches Ilunas and explains to him the traditions of the castle. Soleil's name shares a similarity with a previous lord of the castle, and Soleil's name shares a similarity with the brother of the previous lord who tried to dethrone his older sibling. Soleil realizes that Ilunas is a descendant of the brother from long ago. With this, Soelil and Ilunas unite, and are appointed lords of the Eclipse Castle.