Ep 11. Under the Pledging Tree!

After Serena registers for the Pokémon Showcase, our heroes find the locals busily hanging decorations and wrapping presents! Ramos explains that Coumarine City holds an annual festival where Trainers give their Pokémon presents under the giant Pledging Tree. Ash and Serena go shopping for gifts, and while Serena has great success, Ash can't find anything. On the way back, Serena asks what kind of present would make him happy, which gives him an idea!