Character Transformation! Amulet Diamond!
With the X finally removed, Amu and Diamond Character Transform into Amulet Diamond. Utau becomes depressed that she lost to Amu, but Ami appears and helps reminds Utau of her joy of singing. Yukari leaves in the helicopter, but the X Eggs stored on board hatch and escape. The Guardians battle the X Characters. Utau Character Transforms with El, becoming Seraphic Charm, and flies up with Amu to the out-of-control helicopter. Utau purifies the X Characters. However, Yukari falls and Utau catches her. Meanwhile, Amu guides the helicopter safely to the ground. When Yukari asks why Utau saved her, Utau responds that the two are partners. In the mix of the purified eggs, the shining egg appears again before flying off into the sky. Ikuto is shocked when Tadase mentions that it is the Embryo. Diamond returns to her egg, but tells Amu to remember the radiance is still within Amu.
Aired 02/08/2008EP 43 - Character Transformation! Amulet Diamond!
Shugo Chara!
Amu Hinamori is a 5th grade transfer student who is fashionably cool, tough and independent. Despite this, she is also a girl who seems unapproachable, both at home and at school. In reality, the "Cool and Spicy" role she plays is just a facade that she unconsciously plays. With her guardian characters, she fights the Easter Company who is extracting people's eggs to create X Eggs & X Characters in search of a special egg called the Embryo.
(Source: Crunchyroll)