Number: 2.
Japanese title: "Kokoro no Tamago!" (こころのたまご!).
Airdate: October 13, 2007.
Directed by: Hiromitsu Kanazawa.
Written by: Michiru Shimada.
Preceeded by: Episode 01: Shugo Chara Born!
Followed by: Episode 03: Flaky and Fluffy, Leave It to Su!

SummaryNadeshiko Fujisaki invites Amu to tè at the Royal Garden with the Student Council Guardians, along with a message from Tadase that he will tell her about the heart's egg. During P.E. class, the blue egg begins to hatch, unbeknownst to Amu and Ran, and Miki, Amu's secondo Guardian Character, peers out. However, after seeing Amu and Ran in an argument over a Character Change, Miki runs off. The two soon discover Miki and give chase. Miki warns Amu that if she does not believe in her Guardian Characters, they will disappear. When Amu meets with the Guardians, Tadase, Nadeshiko, Kukai Soma, and Yaya Yuiki, she discovers that they also have Guardian Characters and they invite her to join. However, Amu refuses and runs away. Amu encounters a third-grade admirer, Seiichiro Suzuki, and an X-Egg forms from his heart's egg. Amu transforms into Amulet cuore and purifies the X Egg.


TriviaFirst appearance of Guardian Characters Miki, Pepe, Temari and Daichi; and the attack "Open Heart".