Our Feelings United! The Guardians' Battle!
Finally, Nagihiko and Rima were successful in purifying the "X" eggs through the Queens Waltz. However, the music from the violin steadily increased the number of "X" eggs. Before Amu and her gang proceed, the "X" eggs have gathered enough energy to create a huge dog that's standing in their way. Source: crunchyroll
Aired 05/09/2009EP 48 - Our Feelings United! The Guardians' Battle!

2008
Shugo Chara!! Doki
With things having quieted down a bit for the Guardians, they can now focus on things besides fending off the peril of the evil Easter Corporation. Amu is having some troubles deciding which guy she likes the most, and hiding Ikuto in her room. Not only does the Embryo still elude the Guardians, and worries of Easter being suspiciously inactive, the threat of a new X Egg appears...