His real name is Vector, and everyone except Yuma calls him Ray. Following his resurrection, he has a playful personality, loves his friends, and smiles often.

He holds the position of a patrolman, and his partner and alter ego is Astral! He constantly says "Kattobingu!" and lives with a spirit of giving his all to everything. He trusts and cherishes his friends deeply.

His real name is Nash. Only Rio calls him Reginald; others usually call him Shark, while the remaining Barian Emperors call him Nash, their leader. He tends to hide his true feelings, but he is quite warm-hearted and values his comrades above all else. He cherishes them so much that he is the first to get angry if someone messes with them. While slightly different from Yuma, they share the trait of deeply caring for their people.

He is close with Nash, Rio, and Mizar, and has a particularly special bond with Rio. He has an incredibly strong sense of duty and responsibility. He is always sincere to the point where he will even use underhanded tactics if the mission requires it.

Her real name is Marin. She is a member of the Seven Barian Emperors and the younger sister of Reginald (Nash). She is very close with Dumon. While she once had a bad history with Vector, just like Dumon did, they are now close enough to exchange jokes and chat with smiles.

A member of the Seven Barian Emperors. He takes immense pride in being a Dragon-type user and never has a shred of doubt regarding what he believes in. However, he also has great initiative, trusting those he acknowledges or his friends and putting that trust into action. His downside is that his high self-esteem can sometimes hold him back.

He doesn't hesitate to give advice to his friends. He can be a bit of a fool, but he is sincere toward his comrades. He's a good guy at heart, though he's often shown being taken advantage of.

He loves fair and square duels and shares some similarities with Yuma. Like Mizar, he is very proud, but the difference is that he values friendship even more than the pride of fighting. If it's for a friend, he'd even borrow someone else's power. When it comes to his friends, he is likely just as sincere as Yuma or Nash.

Yuma's alter ego and partner. He is not human, but a being from the Astral World. He used to be purely calculating, cold, and inflexible, but after meeting Yuma, his personality improved significantly. Now he has developed emotions, laughs when appropriate, and is capable of feeling.

He does not appear in this work as he is already deceased. Since he wasn't human to begin with, he is simply a dead entity.