Valt Aoi Childhood friends with Shu Kurenai and Xander Shakadera since kindergarten. He has a bright, forward-looking, and positive personality. An energetic person who makes everyone around him smile, he is great at making friends. He tends to act before thinking and is often called an "idiot," but he sometimes shows a surprisingly dignified and serious expression. First person: I (casual/energetic).

Shu Kurenai Childhood friends with Valt Aoi and Xander Shakadera since kindergarten. Also known as the "Angel Boy loved by God." Behind his cool and calm demeanor, he hides a burning fighting spirit. He dislikes crowding and speaks cautiously, leading others to think he is quiet. He is kind and composed, usually leaning towards kindness. He is talented at most things and very handsome, making him popular with girls. Despite his mental strength and patience, he is the type to bottle things up alone. First person: I (cool/polite).

Rantaro Kiyama Nicknamed "Head Honcho." A man among men. He absolutely hates anything unfair. He is a bundle of justice and honest to a fault. Whether laughing, angry, crying, or happy, his emotional expressions are always exaggerated. Due to his way of speaking and short temper, he is often misunderstood as being violent, but he is actually a simple, good guy who is caring and a natural big-brother figure. He is the type who can stay calm while observing others. Valt's younger twin siblings, Toko and Nika, are also very fond of him. He often has a lollipop in his mouth, keeps a manga magazine tucked in his waistband, and carries a large folding fan. He is bad at studying and hates caterpillars. First person: I (rough/masculine).

Ken Midori He wears dog-like puppets on both hands—"Keru" on his left and "Besu" on his right—and always speaks through these two puppets. While he takes them off to eat bread, he keeps them on for regular meals, and even when taking a bath. His family runs a puppet theater troupe, and his puppets Keru and Besu appear in the plays; he also visits the hospital where Daigo's younger brother is admitted to perform. He is quite shy and his face turns bright red easily. Ken's own first person: I (soft/polite).

Daigo Kurogami Cool and collected, he often calms Valt down. He is intensely obsessed with victory. Because he is afraid of losing, he researches his opponents thoroughly and tries to crush them completely. In truth, he has a personality that tends toward negative thinking. He loves small animals and can't help but dote on them. He has a younger brother (Sota) who is hospitalized due to illness. First person: I (cool/casual).

Wakiya Murasaki The scion of the Murasaki Group. Despite his sharp appearance, he speaks with a soft Kansai accent. He is a hard worker who spends endless hours training on machines at home. However, perhaps because of this, he is extremely confident and views Shu as a major rival. He is actually afraid of heights. First person: I (regional/confident).

Quon Limon He always uses a skateboard to constantly train his physical balance. He maintains a calm and cool attitude but is incredibly serious. He met Valt when he lent him his skateboard, and after returning Valt's lost Valkyrie, Valt started calling him a "God." First person: I (cool/casual).

Alexander Shakadera Commonly known as "Xander." Childhood friends with Valt Aoi and Shu Kurenai since kindergarten. He is manly, big-hearted, generous, and boisterous—a caring leader-type who laughs with a loud "Gahaha!" His family has run a traditional martial arts dojo for generations, and he possesses a body forged by those arts. His power is as immense as he looks. First person: I (masculine/boisterous).

A super idol singer popular in dramas and variety shows. His stage name is "Zac the Sunshine." First person: I (polite/flamboyant). His catchphrases are "Nice!" and "Ha-han!" While he has a pretentious personality, he also has a side similar to Valt, such as getting carried away easily. He creates environments that draw out his maximum power through performance, and the more attention he gets from the audience, the more power he displays. He usually wears disguises to hide his identity as an idol, but he fails to hide anything and ends up standing out even more, though he is unaware of this. He calls Valt "Twinkle-kun" and Wakiya "Mr. Vain."