ADA - bsd

Yukichi Fukuzawa - The founder and president of the Armed Detective Agency, as well as a former bodyguard and assassin. Taking his presidential role seriously at the Agency, Fukuzawa puts the welfare of his subordinates as a priority, and he is highly skilled with martial arts and swordsmanship. He highly regards order and peace for the sake of Yokohama, which led his ultimate goal to establish the Agency in the first place 12 years ago. His ability is "All Men Are Equal", which gives him access to all official members of the Agency, including successful applicants (Atsushi and Kyouka, for example), to fall within its range based on their values and character, letting it suppress their abilities.

Ranpo Edogawa - The co-founder and the greatest detective of the Armed Detective Agency. Born with a higher amount of intelligence, Ranpo is prideful of his ability that earns many respects from everyone, especially his comrades. Despite this, he tends to act childish in his free time, always seen eating sweets at his desk area and does not know how to do simple tasks such as riding a train or bus. However, he is otherwise serious whenever a troublesome situation appears such as when the President is infected with the Cannibalism virus. Ranpo possesses a non-ability called "Ultra-Deduction", which allows him to solve a mystery in seconds.

Akiko Yosano - The sole doctor and personal physician of the Armed Detective Agency and former student medic during the Great War. On the surface, Yosano is a graceful woman with her capability to heal one's wounds with her ability; however, she is also an aggressive sadist who admonishes enemies who do not regard human lives, due to her traumatic childhood with the Agency's arch-rival and Port Mafia leader, Ougai Mori. She possesses a rare healing ability, called "Thou Shalt Not Die", allowing her to only heal wounds that are at least partially fatal. Due to its functionality, Yosano carries deadly weapons to heavily injure her patients with minor wounds before healing them at full health.

Doppo Kunikida - The idealistic member of the Armed Detective Agency and former college algebra instructor. Being well-suited for the second-in-command position, Kunikida is highly dedicated to his job at the Agency. He is always seen with his notebook that includes his ideals to guide his life properly, including a list of 58 conditions for a perfect spouse and his daily routines and agenda. Not only Kunikida writes his ideals and daily schedules on his notebook, but also uses it to activate his ability, "The Matchless Poet", creating a non-living object from a written page that is no larger than its size.

Osamu Dazai - The suicidal member of the Armed Detective Agency and former Port Mafia Executive. Taking words from his late best friend Sakunosuke Oda four years ago, Dazai decided to join the side that saves people, which led to saving the orphaned Atsushi from starvation later on. Aside from his sharp and witty personality that make him resourceful to the Agency, he is rather comically overdramatic, wishing to commit double suicide with a pretty woman (particularly with the maid from Cafe Uzumaki). Dazai possesses a power-nullifying ability, called "No Longer Human".

Jun'ichirō Tanizaki - The humble member of the Armed Detective Agency and Naomi's adoptive older brother. Junichiro is considered the most normal person out of everyone in the Agency, lacking an unusual quirk such as Dazai's suicidal tendencies and Ranpo's childish behavior. Despite this, however, he has an otherwise intimidating and violent side towards anyone who lay a finger on his sister. Thus, he is the most dangerous member of the Agency, in terms of liability. Junichiro possesses "Light Snow", an illusion-projecting ability best used for recon missions.

Kenji Miyazawa - The carefree member of the Armed Detective Agency, hailing from a rural farming village called Ihatovo. Given his simple childhood with happy, supportive villagers, Kenji is popular for his hospitable personality towards everyone in Yokohama. He decided to join the Agency for the sake of helping and protecting others, including the President, with his life. Despite his youthful appearance, he possesses an ability that grants him immense strength, called "Undefeated by the Rain".

Atsushi Nakajima - The kindhearted member of the Armed Detective Agency with a tragic upbringing, due to being abused by the orphanage director countless times. Atsushi has a great sense of morality, given his painful childhood he had to endure as an orphan. In addition, he displays sympathy among lonely people who struggle just like him, such as the ex-Port Mafia assassin Kyouka and ex-Guild member Lucy. Being part of the Agency, Atsushi is supportive of his new comrades, never hesitating to help others in need. He is the user of the special ability that transforms him into a white tiger with an enhanced strength, called "Beast Beneath the Moonlight". Due to this, he is wanted by Port Mafia and (formerly) the Guild, placing a bounty on him for 7 billion yen.

Kyōka Izumi - The stoic member of the Armed Detective Agency and a former assassin of the Port Mafia. Orphaned at a young age, Kyouka displays a lack of human emotions, as she was taken in and ordered by the Port Mafia to kill people, dubbing her as the "Killer of 35 People." Upon being rescued by Atsushi from the train hijacking incident, however, Kyouka started developing human emotions gradually, as well as minimize her attempts of murdering more people and use her ability for good. Aside from her default aloof persona, she has a soft spot for cute things such as bunnies. Through her cell phone, Kyouka possesses an ability called "Demon Snow", inherited from her late mother, to follow the user's commands.