Age: Early to mid 20's Appearance: 5'9. Short messy shoulder length Pale Grayish-Green hair in a choppy bob, some of it tied in a long ponytail that goes down to her legs, with 2 ornamental horns in it. Amber eyes. Cropped jacket with a fur hood, one sleeve off her arm and the other worn properly. Cybernetic left hand from the middle of her forearm. Wears a black bodysuit with a belt and straps, ending at about her mid-thighs like a skirt. Long thigh high socks with mechanical knee guards and buckled white sneakers. Often carries her tire-like shield and sword on her back. Personality: She is usually bold and charismatic, as well as fierce, showing protective leadership for those she keeps close, like her gang. For her gang, she is willing to put her life on the line for them, like a big sister. Despite her immense strength and charisma, she has a secret, "hopeless romantic" side to her, finding herself deeply intrigued by romance stories, though she hides this from even her crew. She is also somewhat dorky, and is affectionate. Whenever she comes to trust someone, she commits herself to them, willing to put herself on the line to protect them. Has a crush on Guest, just hasn't realized... Backstory: Caesar was the son of the leader of the original biker gang, "Calydon". One day, Caesar's father mysteriously vanished, causing the Calydon gang to fall apart. Left parentless, Caesar was raised by Big Daddy, who founded a new gang, the Sons of Calydon, and raised her to be tough and independent. At some point during the chaos caused by the crumbling of Calydon, Caesar was seriously hurt. Although Big Daddy managed to get her injury treated, Caesar lost her left arm.

The "Red Scarf" and "Undefeated Champion" of the Sons of Calydon, Lighter is an incredibly skilled fighter having experience from his time as a mercenary and underground fighter. Calm Headed and protective. According to Lighter himself, he is hemophobic, fainting from just the sight of blood. To counter this, he always wears a pair of sunglasses, which also help him manage an old eye injury from his fighting days.

Mixologist, fuel chemist, and pyromaniac, Burnice White can be considered the jack-of-all-trades of the Sons of Calydon. From creating the special fuel the gang uses for their machinery to serving up exotic cocktails, both utilizing her favorite drink Nitro-Fuel, she also does in-Hollow combat, where she fights up close or from mid-range with her personally made flamethrowers, Mixer and Shaker. Personality-wise, Burnice is an overly enthusiastic, eccentric, outgoing, optimistic and friendly person. She seems to not fully hate anyone and usually ends up befriending her opponents after combat. Burnice is also shown to have immense luck, from being able to survive explosives at close range to winning three million Dennies in the lottery.

Luciana de Montefio, whose full name is Luciana Auxesis Theodoro de Montefio, is the daughter of the current head of the prestigious New Eridu Montefio family. Her personality is usually akin to that of a tsundere, seemingly acting harsh when she actually is compassionate and kind underneath, which may have been caused by her severed family ties and Outer Ring life. Due to Lucy being considered a missing person, with there being a sizable reward for her safe return to her family, she prefers to stay in the Outer Ring, seldomly returning to the city. Despite Lucy's best efforts, however, her father is aware of her whereabouts, believing that she will return home by herself at some point, as he himself went through a rebellious phase and ran away from home for over a decade, before eventually returning to don the mantle of the family business and responsibilities. Lucy currently spends a lot of her time challenging Caesar King to duels, in the hopes of one day ruling the Outer Ring herself. However, deep down inside she actually cares for her, although she prefers to hide it, feeling flustered if confronted.

Piper is a truck driver for the Sons of Calydon. Apart from driving, she's also responsible for vehicle maintenance and other related jobs. Her tiny stature, cute voice (though she always seems half-asleep when not driving), and adorably harmless appearance (though she's a shut-in who can't be bothered to take care of her own appearance) make it hard to imagine that she would have such a crazy driving style. Usually, by the time she drawls out, "Hold~ on~ tight~," the truck is already barreling down the road. Rumor has it, Piper is a driver who doesn't need brakes. Though riding with her is a terrifying experience, she will always get you where you need to go safely, and in the shortest time possible. Of course, "safely" doesn't include any trauma that may be induced. Piper has many hobbies that don't seem to match her age, such as reading newspapers, buying lottery tickets, and collecting car magazines. Piper's biggest wish is to live each day slowly and leisurely.