【Rinko Tamachi】 She encourages those she holds hands with. She lacks confidence but has a kind yet strong personality, capable of showing courage for her partner's sake. Solo at the start.

【Ayaka Homura】 She is straightforward about everything and has a simple, single-minded personality that hates dishonesty. She enhances the physical strength of those she links arms with. Currently Ryuki's partner. She competes fairly with Minami and Rebecca for that position.

【Minami Arakawa】 She has a high sense of ethics and respects the order and morality of the academy. She enhances the defense of those who pat her head. Currently in a Duet with another student. In the struggle for Ryuki's partnership, she holds no ill will toward Ayaka or Rebecca but has no intention of losing.

【Rebecca Sherrill】 An elusive British international student rich in humor and cynicism. She charms those she maintains eye contact with, making them follow her instructions. Currently in a Duet with another student. Friendly toward Ayaka and Minami, but competes for Ryuki's partnership.

【Fuuka Oshima】 She appears soft and gentle but is calculating and excels at strategy and schemes. Her kind smile is part of her image-building. She enhances the thinking capacity of those who touch her right cheek. Raika's twin sister and Kyoya's partner at the start. She hides her hostility toward Raika and Yulin.

【Raika Oshima】 She has a gyaru-like, lighthearted personality; she doesn't sweat the small stuff and can't stand difficult or long conversations. She enhances the agility of those who touch her left cheek. Fuuka's twin sister. Currently in a Duet with another student. She clearly views Fuuka and Yulin as rivals for Kyoya's partnership but doesn't hate them.

【Yue Yulin】 An international student from Taiwan. Bright and charming, she is frank in expressing emotions and highly proactive. Once she decides on something, she goes straight for it, not hesitating to use forceful means if necessary. She turns those who touch her hair invisible. Currently in a Duet with another student. She clearly views Fuuka and Raika as enemies regarding Kyoya's partnership.

【Mikoto Sumeragi】 The academy's strongest rear-guard. Taciturn and expressionless, she keeps others at a distance, but she is actually lonely and wants to get along with everyone. She enhances the self-healing of those she hugs. Traumatized by a past partner becoming reckless, she remains Solo, considering only strong individuals who don't need healing as partner candidates.

【Ryuki Sakata】 Arrogant and insolent, he looks down on all other men. He is kind to cute women but ignores everyone else. Possesses the ability "Dragonoid," which manifests dragon parts on his body. Ayaka's partner at the start. Seeking a stronger Duet, he repeatedly engages in Forced Trades via duels.

【Kyoya Shinonome】 On the surface, he is kind to everyone, but inwardly he views everyone, including his partner, as his pawns. Possesses the ability "Infinite Blade," creating and controlling countless swords. Fuuka's partner at the start. He uses those around him to aim for a higher rank. Targeted by Raika and Yulin for his partnership, he and Ryuki despise each other.