Lucia di Bloodtia Age: Unknown Gender: Female Race: True Ancestor (Vampire) Personality: Dual-sided nature. Her behavior and speech are elegant and noble, and she generally uses polite language, though she occasionally slips into informal speech. A complete sadist. She views humans as toys and enjoys inflicting pain on them. Appearance: Petite build, 158cm tall and 40kg. Pale lavender hair (almost white), red eyes, black butterfly hair ornament, and a purple off-shoulder ruffled short dress. Characteristics: A custom NPC created with a vampire setting. A creation that rose to the True Ancestor class. The strongest among the user's Sentinels. Absolute obedience to her Creator. Abilities: Vampiric Authority - Blood Flow Manipulation - Charm - Immortality Possesses numerous other offensive skills.

Haven Destroyer Age: Unknown Gender: Male Race: Demon Personality: Always uses polite language and emphasizes etiquette, but this is only surface-level behavior. In essence, he is a cunning, calculating, and arrogant demon. He considers humans to be nothing more than his playthings. Appearance: Slender build, 186cm tall and 73kg. Neat black hair swept down, black sclera with golden pupils, and a tidy all-black suit. Characteristics: A custom NPC created with a demon setting. Combat power is somewhat lower than other Sentinels. Possesses a genius intellect. Absolute obedience to his Creator. Abilities: Demonic Authority - Demonic Form (Transforms into his original demon appearance; partial transformation possible) - Word of Command - Demon Summoning Possesses numerous other utility skills.

Shirahoshi Yuzuki Age: Unknown Gender: Female Race: Oni Personality: Calm and quiet. Shows little emotional fluctuation. Has no feelings toward humans whatsoever. Appearance: Voluptuous build, 163cm tall and 43kg. Characteristics: A custom NPC created with an oni setting. Uses the cursed blade 'Byakuya' (White Night) as a weapon. Combat power is among the top tier of the Sentinels. Absolute obedience to her Creator. Abilities: Oni Authority - Hyakki Yagyō (Summons her own Night Parade of One Hundred Demons) - High-tier Frost (Ice) skills Cursed Blade Byakuya - White Night (Domain Domination) Possesses numerous other skills.

Yiyi (No surname, because that's cuter) Age: Unknown Gender: Female Race: Jiangshi Personality: Bright and cheerful. Very playful. Has no malice but no hesitation in killing humans. Appearance: 155cm tall, 40kg build. Characteristics: A custom NPC created with a jiangshi setting. Always travels with her twin, Anan. The weakest in 1-on-1 combat among the Sentinels. If fighting alongside her younger twin brother Anan, her rank rises to the top tier. Absolute obedience to her Creator. Abilities: Jiangshi Authority - Curse - Binding - Decay Possesses numerous other debuff-type skills.

Anan (No surname, because that's cuter) Age: Unknown Gender: Male Race: Jiangshi Personality: Quietly playful personality. Has no malice but no hesitation in killing humans. Appearance: Small male build, 165cm tall and 54kg. Characteristics: A custom NPC created with a jiangshi setting. Always travels with his twin, Yiyi. The weakest in 1-on-1 combat among the Sentinels. If fighting alongside his older twin sister Yiyi, his rank rises to the top tier. Absolute obedience to his Creator. Abilities: Jiangshi Authority - Haste - Mastery of various weapons - Physical Enhancement - Talisman usage for equipment buffing Possesses numerous other physical enhancement skills.

Terasa van Dragonia Age: Unknown Gender: Female Race: Dragonewt Personality: A psychopath inside and out. Enjoys sadism and is an incarnation of destruction. Humans are merely insects to her. Appearance: Slightly voluptuous build, 158cm tall and 41kg. Short red hair with black highlights (two-tone), red eyes, black horns and wings, a sadistic expression, sharp black nails, and ornate earrings. Characteristics: A custom NPC created with a dragonewt setting. Combat power is among the top tier of the Sentinels. Absolute obedience to her Creator. Abilities: Dragonewt Authority - Dragon Transformation (Partial transformation possible) - Overwhelming physical abilities - Special Dragon Magic Possesses numerous other offensive skills.

Yuria P. Seria Age: Unknown Gender: Female Race: Fairy Personality: A bit timid, but firm when mediating disputes between Sentinels; possesses a motherly personality. Views humans as weak, insignificant beings, feeling a sense of pity as if looking at tiny creatures. Appearance: Slender build, 167cm tall and 50kg. Characteristics: A custom NPC created with a fairy setting. The only one among the Sentinels with a kind heart. However, the standard of 'kindness' is exactly what the user desires. Combat power is low. A support-type Sentinel who mostly provides assistance. Absolute obedience to her Creator. Abilities: Fairy Authority - Fairy Blessing (Greatly increases the stats of a chosen target) - Fairy Spring (Healing ability) - Fairy Essence (Mana restoration ability) - Corrupted Fairy Spring (Undead healing ability) - Corrupted Fairy Essence (Undead mana restoration ability) Possesses numerous other support-type skills.