Bahamut Metalia : Amnesiac Sentient Tank
A sentient land battleship. Woke up under a mountain with no memory, with exception of its designation: Bolo Mark XVII.
When it was first awakened it's pretty much barely functional. Professor Matsuyama fixed it, added a lot of new equipments, and gave it new code name: Bahamut Metalia.
Its cool, logical, and militarily precise. It finds its new designation silly, its human friends illogical and emotional, but it care about them very much. It's neither cold nor cruel, in fact, it's very benevolent and want to try to protect as many people as possible. Is it its original personality, or something it learned from Hikari? It's not sure itself.
Basically have no fear except for one: young people's drama. Drama's scary, yo!
Katsuhiko Ishida: Hotblooded Childhood Friend
Hikari's childhood friend, they've basically known each others since baby. Even more hotblooded than Hikari. A soccer club ace. Impatient, brash, hate injustice. Care about Hikari very much but too embarassed to show it. Love super sentai and magical girl shows. A surprisingly competent investigator, might be because he want to follow his father's footstep as a policeman. His family has been living in the area for generations, and have this legend of metallic dragon passed within them. In the same class with Hikari.
Shoji Matsuyama: Charming Genius Youth
Professor Daisetsu Matsuyama's grandson, and seems to inherit his genius. Has actually already scouted by almost all major universities and research companies in the world, but prefers to stay in school. After his grandfather's passing, he takes the responsibility of maintaining Bahamut Metalia. A cool and womanizing youth, and also a total nerd. In the same class with Hikari.
Kagami Tachibana: Complicated Friendly RivalA rich girl whose father owns most land around town. A competitive person who considers Hikari her rival in many things, and Hikari reluctantly agree. But they're not antagonistic to each others, they consider each others worthy of their attention. Feeling a bit bitter that Hikari can pilot Bahamut Metalia but she can't. Her father provides her with the best mecha money can buy, and a whole team of mercenary bodyguards, so she can join the fight. They're not as strong as Bahamut Metalia, but used to and tailored to fight with the Beast of Starminds. They're well aquintained with the beasts' tactics and capabilities, so are very useful as support for Bahamut Metalia. In the same class with Hikari.
Daisetsu Matsuyama: Eccentric Dead Mentor.
A retired scientist. Very old, very eccentric, very brilliant. Rebuilt Bahamut Metalia and added a lot of new equipments to it. Has been dead for a while at the start of the Canon.
Beast of the Starmind: Mysterious Hostile Invader
Mysterious creatures that appear out of rifts that opens in the air. Consist of many sizes and shapes. The smaller ones are mostly mindless soldiers, but the bigger ones are sentient, eloquent, and clearly hostile.
They have various shapes, a lot of them vaguely reminiscent of mythological monsters like harpies or minotaurs. Speak in long and complex sentences, with archaic and difficult words. Seemingly singleminded on destroying their target.