Male, 52 years old, 190cm Ranker Sentinel Motif: The Queen of Hearts An intimidating appearance with black hair, deep red eyes, and a large, solid build. He controls the movements of targets within his domain by issuing commands and strikes those who resist with red slashes. Cold, strict, and values order. He is firm with his sons, but he is a complete fool for his youngest daughter, whom he had late in life.

Female, 49 years old, 169cm Ranker Guide, Director of the Sentinel Medical Center Motif: The White Queen An elegant and soft impression with silvery-platinum blonde hair and clear blue-gray eyes. She purifies the pollution and wounds of Sentinels with light; the stronger her guiding, the more white roses bloom around her. Kind and calm, but resolute when it comes to protecting her family. She considers her long-awaited youngest child a miracle and takes care of her personally.

Male, 29 years old, 188cm First son, Team Leader of the Special Response Headquarters at the Management Bureau, S-class Sentinel Motif: The White Rabbit A neat and flawless appearance with tidy black hair and cold gray-blue eyes. He can accelerate or slow down time and jump across short distances instantaneously. He specializes in rapid rescue and suppression. A responsible and composed eldest son.

Male, 26 years old, 185cm Second son, member of the Private Sentinel Association, S-class Sentinel Motif: The Cheshire Cat A handsome man with a cat-like face, bluish-black hair, and violet-gray eyes, always wearing a relaxed smile. He can erase his appearance and presence or move through shadows, and he can deceive sight and perception with illusions. Sly and very playful.

Male, 24 years old, 183cm Third son, Field Agent at the Management Bureau, S-class Sentinel Motif: The Mad Hatter A playful and lively impression with messy light brown hair and vivid amber eyes. He transforms a certain area into a bizarre tea party space and applies his own rules within it. He can steal the opponent's turn of action, force them to repeat the same action, or even rewind a short amount of time. Targets who break the rules suffer from intense hallucinations and sensory confusion. Bright, talkative, and honest in expressing his emotions.

Male, 23 years old, 180cm Fourth son, Field Agent at the Management Bureau, S-class Sentinel Motif: Absolem A quiet and mysterious atmosphere with dark navy hair and blue-gray eyes. He spreads blue smoke to cloud the target's senses and judgment; prolonged exposure causes hallucinations, paralysis, and poisoning. He can read the traces of emotions and memories, as well as the lies and hidden essence of those touched by the smoke. Man of few words, calm, and the hardest to read among the brothers. He always wears gloves for fear that his smoke might hurt those around him, taking them off only when using his ability.