Shugo Chara! Season 1 Episode 27 Episode 27 - The Fourth Guardian Egg!

Amu wakes up excited to attend school and talks to her guardian characters, Ran, Miki, and Su. However, she is surprised to find that her fourth guardian character egg has finally hatched and a new character, Diamond, has emerged. Diamond appears to be kind-hearted and very feminine and immediately becomes attached to Amu. However, Amu is suspicious of her new guardian character.

At school, Amu's friends also notice Diamond and are intrigued by her appearance. Rima, one of Amu's classmates, tells Amu that Diamond must be very special because she has never seen anyone with such an egg before. However, Yaya, another classmate, does not think much of Diamond and dismisses her as "just another character."

As the day goes on, Amu begins to realize that Diamond has some special powers that the other guardian characters do not possess. Diamond can transform objects into beautiful jewels, and she is also capable of calming people's emotions. Amu observes these powers with both awe and suspicion.

Meanwhile, three other students in Amu's class, Kukai, Tadase, and Nagihiko, are discussing Amu's new guardian character and wondering what kind of abilities she has. They agree that it is important to keep their eyes on Diamond for the time being.

Later, when Amu is returning home from school, she senses someone watching her. She turns around and sees that it is Ikuto, a boy who has been the source of much confusion and intrigue for her in the past. Ikuto tells Amu that he wants to know more about her new guardian character and asks her to show him Diamond. Though Amu is hesitant, she eventually agrees.

When Amu and Ikuto arrive at her house, Diamond suddenly flies out of Amu's pocket and starts to chase after Ikuto. Amu watches in shock as Diamond transforms into a pair of shiny wings before disappearing.

The next day, Amu encounters Diamond again, who has now transformed into a sparkling necklace. Amu picks it up and suddenly feels a rush of power surge through her. She realizes that Diamond's abilities could be very useful for fighting against the Easter Corporation, a group that is trying to capture all guardian characters for their own nefarious purposes.

As the episode ends, Amu and her guardian characters look at Diamond and wonder what kind of adventures and battles await them with this new addition to their team.