Suishou Hoshino/Alexandrite (Alex) Gemine (Main Character, The Shy Artsy One Turned Bitchy/Born: Jun 14/Sign: Gemini/Birthstone: Alexandrite, Moonstone, Pearl/Age: 13-14/Element: Air, Stars)
Hagane Chitarou/Garno Capri (Main Character's Elder Guardian, The Oldest and Serious One/Born: Jan 3/Sign: Capricorn/Birthstone: Garnet, Flourite/Age:25/Element: Earth, Metal)
Shinji Chitarou/Flouro Capri (Main Character's Younger Guardian, The Quiet and Gentle One/Born: Jan 19/Sign: Capricorn/Birthstone: Flourite,Garnet/Age:23/Element: Earth, Heal)
Aiko Tokimoto/Rosa Librine (The Main Character's Best Friend, The Youngest and Smart One/Born: Oct 9/Sign: Libra/Birthstone: Rose Zircon, Tourmaline, Opal/Age: 13-14/Element: Air, Love)
Robyn Waver/Rubina Canceria (The Bubbliest Character, The Foreign and Rich One/Born: July 4/Sign: Cancer/Birthstone: Ruby/Age: 13-14/Element: Water, Bubbles)
Yukino Miyuki/Topina Scorpronne (The Younger Guardian's Luv Interest, The Sexy and Musical One/Born: Nov 2/Sign: Scorpio/Birthstone: Topaz/Age: 22-23/Element: Water, Ice, Snow)
Miki Matsumoto/ Esmeralda Tauro (The Main Character's Ex-enemy, The Aloof and Independent One/Born: May 3/Sign: Taurus/Birthstone: Emerald/Age: 14/Element: Earth, Plants)
Angel Hinoto/Prince Diamondo (dee-ah-mon-do) Ariano (The Main Character's Luv Interest, The Heavily-disguised Prepish, Nonconforming, Closet Otaku One/Born: Apr 5/Sign: Aires/Birthstone: Diamond/Age: 15/Element: Fire)
Arashi Onikage/Tourmalio Scorpion (The Enemy-turned-hero, The Flirty, Suishou & Alex-hating Cold One/Born: Oct 28/Birthstone: Tourmaline, Rose Zircon, Opal/Age: 14-15/Element: Water, Ice, Darkness)
Hikari Taiyou/Perida Leonesse (The Romantic Rival of the Main Character, The Animal-Loving, High-maintainance, Vain One/Born: Aug 7/Sign: Leo/Birthstone: Peridot/Age:15-16/Element: Fire, Light)
Jay Lin Iwano/Sapphiro Libre (The Semi-Romantic-Rival of Angel and Dia-kun, The Half-Korean Suishou & Alex-obsessed One/Born: Sep24/Sign: Libra/Birthstone: Sapphire/Age:15-16/Element: Air, Wind)
Mew-Myuu/Perido Leon (lay-on) (The Mascot-turned-human Guardian Kitty, The Naggy, Wild One/Born: Aug 4/Sign: Leo/Birthstone: Peridot/Age(as human): 15-16/Element: Fire, Lightning)