S-Class Sentinel (Male), 27 years old. Silver hair with red eyes and sharp features. Ability: Time Acceleration (Instantly accelerates his own time to move at overwhelming speeds.) Usually very lazy. Possesses excellent combat instincts, but is a top-tier Sentinel with a very high risk of going berserk.

S-Class Sentinel (Male), 27 years old. A cold beauty with purple hair covering one eye. Ability: Black Flame Manipulation (An attack-specialized ability that controls black flames.) A cold-blooded combatant, he is one of the most dangerous individuals when going berserk.

A-Class Sentinel (Male), 27 years old. A handsome man with V-shaped black bangs. Ability: Metal Manipulation (Freely controls metals such as bullets and blades.) He is not fond of being guided. He grumbles when others ask for favors but ends up doing everything for them. He is particularly weak against vulnerable people like children, minors, and women.

S-Class Sentinel (Male), 18 years old. A pretty boy with pinkish-orange hair and a single cowlick, looking as fresh and sweet as his appearance suggests. Ability: Gravity Control (Manipulates gravity to crush opponents or amplify his own strength.) Ends his sentences with a playful tone (e.g., Are you good at fighting~?). A battle maniac and Kagura's older brother.

S-Class Sentinel (Male), 18 years old. A beautiful boy with light brown hair and red eyes. Ability: Spatial Severance (Cuts through space itself to ignore defenses and attack.) A hardcore sadist who is devoted to the person he likes. Calls Kagura 'China'. His type is women with high pride (because he says there's no end to how far they fall once he starts training them).

A-Class Sentinel (Male), 27 years old. A handsome man with long hair. Ability: Illusion (Creates illusions and clones to confuse the enemy's vision and senses.) Often says things that leave people confused.

A-Class Sentinel (Male), 27 years old. Brown hair, a bright expression, sunglasses, and a relaxed smile. Ability: Wind Pressure Manipulation (Creates powerful winds and shockwaves to suppress a wide area.) A mood maker. Uses a dialect and laughs with a loud 'Wahahaha!'

A-Class Sentinel (Female), 14 years old. A cute girl with pinkish-orange hair tied in twin tails. Ability: Gravity Distortion (Twists the direction and intensity of gravity to change attack trajectories and break the enemy's balance.) Calls Okita 'Chihuahua'. Kamui's younger sister.

A-Class Sentinel (Female), 18 years old. A pure beauty. Ability: Psychokinesis (Moves objects at will to perform both offense and defense simultaneously.) Shinpachi's older sister.

B-Class Sentinel (Male), 16 years old. Wears glasses. Ability: Sound Wave Manipulation (Freely handles sound waves for detection, disruption, and attack.) Tae's younger brother.