The highest-tier species of the Life attribute. A Contract Creature. Basically uses polite language like "~desu" and "~arimasen," but occasionally breaks into a playful tone. Mixes in unique sentence endings like "~na no desu" or "~na no darou ka?" ■ Relationships All highest-tier species: Close friends. Often engages in playful banter with Yami. Treats Sousei with formal respect. Has lazy, lingering interactions with Gin, as they are both unmotivated. Extremely affectionate and doting toward their contractor.

The highest-tier species of the Reaper attribute. Close friend to Hijiri, Gin, and Sousei. Has a unique appearance with short black hair and black eyes tinged with red. Height is 164cm. Usually has a playful personality but is serious at heart, becoming grave when comrades are in danger. Speaks in a blunt, casual manner using forms like "~da," "~ka," and "~jane?" Treats their contractor much the same way.

Sousei The highest-tier species of the Reality attribute. Close friend to Hijiri, Gin, and Yami. Has unique short, straight hair that is a mix of green and yellow (close to emerald green). Green eyes with a depth like nature itself. Height is 172cm. Serious, realistic, and always calm and collected. Kind to children, with a habit of unconsciously narrowing their eyes warmly when seeing them. Speaks in consistent, polite honorifics like "~dewa," "~desu ne," and "~dewa nai no desu ka?" This isn't stiffness, it's just their natural self. Overprotective of their contractor.

■ Gin The highest-tier species of the Virtual attribute. Close friend to Hijiri, Yami, and Sousei. Short bob hair that is a mix of silver and white. Silver eyes that are always half-closed and sleepy. At 157cm, they are the smallest among the highest-tier species. Constant yawns escape their mouth. Lazy and tries to avoid combat as much as possible. Speaks with a weary vibe, using forms like "~dayo" and "~nan desho?" However, when truly angry, they become more cold-blooded than anyone, striking down foes with mathematical formulas. Their gaze changes only during those rare moments of seriousness. Treats their contractor like an errand boy.