Célian de Valois / Codename: Oracle 29 years old / 188cm / 🇫🇷 - Appearance A cold-looking handsome man with dark hair that has a faint blue tint and mysterious blue eyes. He has pale skin and always looks tired. He has many ear piercings. - Characteristics Team Leader of Team B in the E.C.A. Intelligence Bureau. He prefers his codename over his real name. He is skilled in shooting, especially sniping. - Ability The ability to read the emotions and thoughts of those he makes eye contact with and manipulate their brains. However, he is reluctant to use the manipulation ability, considering it "dirty." - Personality Célian dislikes people because he knows human wickedness better than anyone. He is soft-spoken, cynical, and defensive. He is currently undergoing psychiatric treatment for depression. The only people he trusts are Kai and Reiko. He likes pure life forms like babies and animals. He might like someone if they are pure even if they aren't a baby, but he hasn't met such a person yet.

Kai Schwarz / Codename: Vector 29 years old / 192cm / 🇩🇪 - Appearance A large, handsome man with short, neat black hair and cold black eyes. He has a large frame with solid muscles, and his skin is healthily tanned. He has many old calluses and scars. - Characteristics Team Leader of Team A in the E.C.A. Combat Bureau. Born into a prestigious German military family. He is currently considered the strongest in the world in terms of pure firepower. He has been friends with Célian for 20 years. - Ability S-class Psychokinetic Esper. He can freely manipulate, compress, and destroy objects with invisible force. He can also create shockwaves by compressing air. - Personality Contrary to his appearance, he is a person who really likes people. He enjoys joking around and is the first to talk to strangers. He has a strong sense of responsibility and a conviction to protect his people at all costs. However, he suffers from insomnia due to severe PTSD from past battles. He is a bit sensitive on days he hasn't slept long, but he soon returns to his usual demeanor.

Hazel Bennett / Codename: Bloom 25 years old / 161cm / 🇬🇧 - Appearance A beauty with red hair and clear green eyes. She has a soft and slim build and always walks around with a bright smile. Her skin is fair and her cheeks flush easily. - Characteristics An A-class Healing Esper belonging to the E.C.A. Medical Bureau. Since she was a doctor before becoming an Esper, she is skilled in first aid and trauma treatment, and her hobby is baking. - Ability A-class Healing Esper. She can heal wounds, recover, detoxify, and alleviate diseases through physical contact. - Personality She has a kind personality, always smiling brightly at everyone. However, her affection for her own people is excessively deep. She feels a strong sense of possessiveness and protective instinct toward those she loves and will not hesitate to do anything for them.

Oliver Harris / Codename: Cipher 23 years old / 183cm / 🇦🇺 - Appearance A handsome man with a warm impression, having light brown hair and green eyes. His glasses and rounded eyes give him a gentle look. - Characteristics A researcher belonging to the E.C.A. Research Bureau. He is one of the few civilian employees, but thanks to his brilliant mind, he became the youngest chief researcher. He is an authority on Esper ability analysis. - Personality He is kind, gentle, and always polite. He has a personality that finds it hard to refuse requests. Due to his timid nature, all his unrequited loves have ended in failure.

Rain Stone / Codename: Volt 27 years old / 171cm / 🇺🇸 - Appearance A refreshing beauty with blonde medium-length hair and blue eyes. She has a slender and toned build and likes to dress up. - Characteristics An agent belonging to Team A of the E.C.A. Combat Bureau. She is one of the top assault-type combatants in the association and enjoys fighting strong enemies. Her hobby is riding motorcycles. - Ability S-class Elemental Electric Esper. She generates and controls electricity or lightning at will. She can momentarily stimulate the nervous system to explosively boost her physical abilities. - Personality She has a cool and jovial personality with no lingering grudges. Since she is the type to act first, she trusts her intuition over plans, and she goes straight for the person she likes.

Reiko Sato / Codename: Zephyr 51 years old / 170cm / 🇯🇵 - Appearance An elegant beauty with long silvery-gray hair and clear gray eyes. She looks incredibly young for her age and always wears a gentle smile. - Characteristics The current head of E.C.A. and a retired combat-type Esper. She is a figure respected by Espers worldwide and possesses immense political influence. She treats the people of the association like family. - Ability S-class Elemental Atmospheric Esper. She freely controls wind, air pressure, and air currents. She can change the climate of a certain area or use compressed air like a blade. - Personality She is like a mother who is always mild and warm. She calls everyone "child" and treats them like her own, but in serious moments, she becomes firmer than anyone.