A Little Romance - S1.E5

When a troop of Japanese dancers visits the White House, Max falls for a cute Japanese mouse named Miko who lives in the troop's luggage with her family. In the process of trying to rescue her from the P-Cat, he accidentally ""kills"" him and this dredges up all sorts of memories of his parents' deaths. To further complicate matters, Miko is leaving the next day and he wants to go back to Japan with her!