Organization With A Dark Secret: Crea and Mirea's parents were two of the founding members of the Hero Organization and were involved in the creation of Shiningman.
Revenge: Chapter nineteen confirms this as their true goal.
Villains Out Shopping: The Jackie combatants are frequently dispatched to purchase food supplies, often with humorous results. Reality Ensues when Mirea is photographed with them by a reporter for the chief hero magazine and Ratman has to rush to prevent it from being published.
The leader of Jackal who made the technology of Ratman's APPEND GEAR. Mirea's older sister.
The Mole: Joined up to investigate the S-Genes. Also a rare positive variant, as the people he's working with have made it clear that they are not above breaking the law and doing downright awful things. At least Jackal avoids the latter...
Karma Houdini: Played with. He's depicted as a legitimate victim and clearly doesn't enjoy having to be evil when in control of himself. Rio realizes this and essentially forgets about how he was one of her captors.
Laughing Mad: When he finds out Shuto is Ratman he telekinetically tears the school roof apart while cackling.
A hero who worked for the security company ANK Security. After the company flopped, he retired from being a hero but became one again when his gym hired him to be their commercial hero and renamed itself Kaiser Boxing Gym.
Superheroes Wear Capes: Wears one for a while until he gets rid of the cape when he gets a new hero suit in Episode 25.
Mikoto Kujo/Ame-No-Uzume-No-Mikotonote Better known as Mikoto or Heavenly Maiden
A heroic swordswoman who also happens to be a first-year student at Shuto's school. The youngest A-ranked hero, and the commercial hero and the sixteenth owner of the vintage fiber manufacturing company Haori.
A-Cup Angst: Expresses embarrassment when IS-KA lists her three sizes.
Action Girl: One of the youngest superheroes registered at the Association, but holds an A-rank.
Blue Blood: The motif and themes of her hero-self shows elements of this. The company that sponsors her is apparently a very elite, highly respected company that has been trading and making high-quality fabrics and gowns for several centuries. Think a designer brand that mostly caters to the very elite, rather than just about anyone who's willing to shell out the cash. Not to mention her title.
An newly-registered but powerful hero working for the Ad-Bank cellphone company. He is connected to Ratman through the S-Genes, and aims to show the world how monstrous heroes can be by infecting them with S-Genes.
Warrior Therapist: Guesses without being told that Shuto was going to try to tap into the same S-Genes that were driving other heroes crazy and manages to get to the root of Mr. Big Horn's issues that drove him to use the hero amplifier, momentarily talking him out of his rampage.