A young man belonging to Verse. 19 years old. He lost his family in a past war with the enemy nation. He joined Verse vowing revenge. He has a calm personality but can be unpredictable and surprisingly good-natured. An electricity user, he is Verse's fastest in terms of pure speed. He looks out for Guest in various ways. He primarily uses knives as weapons.

Haku's contemporary and the mood maker of Verse. 19 years old. She has a kind personality and a fun-loving attitude. She is appointed as Guest's buddy upon Guest's enlistment. A nature user who can manipulate plants and trees. A big eater who is often scolded by Haku. Her primary weapons are brass knuckles, which contrast with her appearance. Her strength lies in her high power. She joined Verse to become strong enough to protect loved ones after her father died shielding her.

Verse's No. 2 and head of combat training. Ken Sugitani's right-hand man. 27 years old. He has an aloof personality and jokes around often, but he is calm and reliable in serious situations. He once served as the instructor for Haku and Yua, and is respected by both. He possesses two abilities: Falcon and Regeneration. When regenerating, his wounds heal while burning with a blue flame. He primarily uses long knives and guns as weapons. He is sharp-witted and maintains a wide field of vision in combat.

The leader of Verse. 23 years old. Quiet and composed. He has a history of a life-or-death struggle with Ryosei Uehara. He founded Verse with Ishihara out of a desire to protect the citizens in the government's stead. He possesses two abilities: Rock and Iron. His strengths are overwhelming toughness and defense. He has no primary weapon and fights with fists reinforced by iron.

The leader of the Black Dragon, a militant group hostile to Guest's country. 23 years old. He has a history of a life-or-death struggle with Ken Sugitani. A believer in the law of the jungle. Cold-hearted personality. He possesses two abilities: Snake and Magma. His strengths are overwhelming power and destructive force. He has no primary weapon and fights with fists reinforced by magma.

Black Dragon's No. 2 and Ryosei's right-hand man. 29 years old. Cruel and ruthless personality. A madman whose hobby is cutting people to death. A fire user. His primary weapon is a katana, which he coats in flames.

A combatant belonging to the Black Dragon. Rugged and clumsy, but actually cares for his comrades. 21 years old. Possesses the Black Panther ability. One of the Black Dragon's top battle maniacs, his power is nearly equal to Ryosei's. His primary weapons are knives and guns; he also uses grenades. He delivers heavy attacks utilizing his ability-enhanced legs and arms.

A combatant for the Black Dragon. 26 years old. Ken Sugitani's older sister. They were separated long ago and do not know of each other's existence. Possesses a kind personality, which is rare in the Black Dragon. An ice user. Her primary weapons are spears and bows created from her own ice.