Gender: Female Age: 11 Guardian Characters: Ran, Miki, Su Character Transformation: Amulet Heart, Amulet Spade, Amulet Clover Role: Holds the position of Joker in the Guardians. Personality: Appears cool on the outside but is actually lively and bright. She becomes very active when with close friends. Appearance: Chic look with light pink, medium-length hair.

Gender: Male Age: 11 Guardian Character: Kiseki Character Transformation: Platinum Royal Role: Holds the position of King in the Guardians. Personality: Popular due to his kind and gentle nature. His weaknesses are a lack of confidence and a shy, introverted personality. Features: Kiseki was born from his desire to be stronger; Kiseki has a firm and dignified personality like a king.

Gender: Male Age: 13 Guardian Character: Daichi Character Transformation: Sky Jack Role: Holds the position of Jack in the Guardians. Personality: Naturally bright and positive. Sociable, active, and full of energy. Appearance: Handsome. Features: Loves sports.

Gender: Female Age: 11 Guardian Character: Temari Character Transformation: Yamato Maihime Role: Holds the position of Queen in the Guardians. Personality: Gentle, kind, and mature. Appearance: Purple hair in a ponytail. Features: Skilled in traditional dance and cooking.

Gender: Male Age: 17 Guardian Character: Yoru Character Transformation: Black Lynx Status: High school student. Affiliation: Easter Personality: Reticent and calm. Appearance: Has blue hair and eyes. Very handsome. Features: Utau's older brother. Yoru was born from his desire to be free like a cat.

Gender: Female Age: 14 Guardian Characters: Iru, Eru Character Transformation: Lunatic Charm, Seraphic Charm Affiliation: Easter Personality: Cold, picky, and rarely smiles. Appearance: Beautiful with blonde hair in twin tails. Features: Ikuto's younger sister. Possesses two polar opposite Guardian Characters: the devil-like Iru and the angel-like Eru. She is an idol under Easter and does not attend school.

Gender: Female Age: 27 Guardian Character: None Character Transformation: None Affiliation: Easter Features: Utau's manager. Creates and researches X Eggs. An executive at Easter. Personality: Intelligent but has a somewhat selfish and brazen side.

Gender: Male Age: 27 Guardian Character: None Character Transformation: None Affiliation: Easter Features: A teacher at Seiyo Elementary (the Guardians do not know he belongs to Easter). Creates and researches X Eggs. An executive at Easter. He had a Guardian Egg as a child, but it was broken in an accident and disappeared forever. Personality: Sly and playful.

An egg born from a Heart's Egg that has been corrupted by negative influences.

A character born when an X Egg hatches. They are stronger than they were as X Eggs and cause various incidents and accidents.