Character list:

Main Protagonists:

Saya Yumiya

Deck: Dragunity Heiratic:

Signature Cards: Cosmic Crush Wyvern; Divine Dragon Knight, Felgrand; Kuridraco; Fiendish Chain

Saya, or just "Sai", is an orphaned teenaged duelist living on the Japanese Space Colony. He wasn't born in the human realm, but in the realm of Duel Monster Spirits known as Fantasia. After reigning champion at the annual National Championship, Sai and his friends were whisked away to Fantasia to stop the "Nothing", an evil entity born from nightmares and forgotten dreams, in a "Never Ending Story" against this ancient evil. Sai is a polite and shy young man who sticks with his friend no matter what. He is soft-spoken, quick to laugh, and socially awkward. But when it comes to dueling, Sai will never back down. Sai was touched by the Nothing when he was a baby, and therefore has a piece of it inside of him. For sixteen years it grew stronger with the anger and sadness that Sai bottled up. The result was an evil personality living inside of him. The only way to keep it under control is "The Ring of Chaos", the most powerful of the seven Fantasian Rings. The Ring allows Sai to access his "Chaos Form", a fusion of his light side and dark side. It also gives him the ability to talk to Duel Monster Spirits. He is given "Tempest, Dragon Ruler of Storms" to protect from Corbulo

Miku Hatsune (Yes I'm using Vocaloid characters)

Deck: Harpie

Signature Cards: Harpie's Pet Dragon; Harpie Dancer; Harpie Channeler; Mecha Phantom Beast Dracossack

Miku is an up and coming idol, and one of Sai's best friends. Sai immediately developed a major crush on her when they first met, but she doesn't notice (Or at least pretends not to). Miku is the princess of Fantasia who came to the human realm to be protected from the Nothing. She possesses "The Ring of Purity", which protects her from any evil that would want to harm her (But the Nothing had grown powerful enough to overcome it). Miku is a bright, cute, witty, and pure-hearted girl who always puts her friends first. She is very overprotective of Sai and thinks of him as her little brother, even though she is only two months older than he.

Mitsukuni Kamigawa

Deck: Fabled

Signature Cards: Fabled Leviathan; The Fabled Kudabbi; Tragoedia; Shadow Spell

Mitsukuni has been Sai's best friend since early childhood when they met at a school fieldtrip to the "Space Colony's Duel School". Mitsukuni is a rash and hot-tempered no nonsense boy, but is kind-hearted nonetheless. While Sai is calm and relies on strategy, Mitsukuni prefers to mow down his opponents as fast as possible. He somewhat sees himself as Sai's rival and will always seek to best him.

Main Antagonists

Corbulo

Deck: Frog/ Monarch

Signature Cards: Light and Darkness Dragon; Mega Monarchs; Kieros the Ultimate Monarch; Guild the Twilight Monarch

Corbulo is the mysterious bane of Sai and his friends. He is the descendant Gnaeus Domitius Corbulo, an ancient Roman general who used the power of the Monarchs to invade Babylon and fight the "Dragon Rulers". Corbulo will stop at nothing to get his hands on the Dragon Rulers, and the Ring of Chaos. His dream is to invade Fantasia with the power of the planets on his side, and remake the realm into his own image.

Octavius and Caesar

Decks: Monarch

Signature Cards: Zaborg the Thunder Monarch (Octavius); Zaborg the Mega Monarch (Octavius); Delg the Dark Monarch (Caesar); Delg the Mega Monarch (Caesar); Keld the Chaos Monarch (Both)

The bumbling and incompetent henchman of Corbulo. Despite having the power of the Monarchs on their side, they always seem to fail their missions. They can become very annoying to their impatient boss.

Minor Protagonists:

Kaito Shion

Deck: Koa'ki Meiru

Signature Cards: Iron Core of Koa'ki Meiru; Koa'ki Meiru Maximus; Koa'ki Meiru Valafar

Kaito is Sai's main rival when it comes to dueling, and winning Miku's heart. He has a huge crush on Miku as well and occasionally goes on dates with her, although Miku doesn't see it as a date. Kaito is arrogant and cocky. He seeks to be the best and is willing to fight the best to achieve that goal. He is also in possession of the Ring of Wishes.

Yago Hikari

Deck: Vylon

Signature Cards: Vylon Disigma; Vylon Omega; Honest

Yago used to be Sai's rival, but is now one of his closest allies. Yago used to be the world champion duelist until Sai defeated him in the finals of the National Championship. Like Sai, Yago has the ability to see and communicate with Duel Monster Spirits.

The Dragon Rulers

The four dragons that make up the very planet Earth, these beings were worshipped by the Babylonians as gods. When the Romans invaded with the power of the Monarchs on their sides, these dragons were the only ones to stand a chance against them. A lone warrior wielded all four Dragon Rulers and defeated the Roman General once and for all, but at a cost. The Dragon Rulers used all of their power and began to die. In order to protect the planet from the Apocalypse, the warrior gave his own life for the lives of the dragons. The four dragons were reincarnated back into infants and sealed away to be released at the appointed time, when the Monarchs would march again.

Kai

Deck: Fire Fist

Signature Cards: Brotherhood of the Fire Fist – Dragon; Brotherhood of the Fire Fist - Tiger King; Brotherhood of the Fire Fist - Horse Prince

Kai was abandoned on the street when he was a child, and raised himself. Kai is in possession of Blaster, Dragon Ruler of Infernos.

Maria

Deck: Ice Barrier

Signature Cards: Trishula, Dragon of the Ice Barrier; Gungnir, Dragon of the Ice Barrier; Brionac, Dragon of the Ice Barrier

The wielder of Tidal, Dragon Ruler of Waterfalls.

Tago

Deck: Karakuri Signature Cards: Karakuri Steel Shogun mdl 00X "Bureido"; Karakuri Shogun mdl 00 "Burei"

The wielder of Redox, Dragon Ruler of Boulders.