Amu and the Guardians learn more about Ikuto's past in their battle with the Easter Corporation, but attentions quickly shift when the Embryo, a special egg thatcan grant any wish to the one who possesses it, appears.
Amu gets an opportunity to learn Ikuto's secret when the bad boy is forced to take refuge at her house in the midst of the ongoing battle against the Easter Corporation.
Fifth grader Amu Hinamori must learn to be her true self in order to help her three Guardian companions find a powerful magic egg that must not get into the wrong hands.
Amu, who has three Guardian Characters, ponders the arrival of a fourth egg at the beginning of the school year and the possibility of trading Guardians with her rival, Utau, who has rejected one of her Guardian Characters.
Amu gains two new Guardian characters, but when she discovers the new Guardian's troublesome secrets, Amu may have to prevent the betrayal of the Guardians to the evil Easter Corporation.
Amu and her three good guardian characters try to stop her fourth side, who works for the evil Easter Corporation, from carrying out a sinister scheme.
Amu, the most popular girl at Seiyo Elementary, wakes up one morning to find three strange eggs, each holding a Guardian Character that can give Amu the power to be someone new and help her discover her true self.
