♂ m

"When I was a kid, I always wanted to be a hero." The protagonist of the story. After living in the countryside for a long time, in order to attend his high school, he decides to move to Tokyo and stays at a boarding house runs by his relatives. When he was young, he was passionately longing to be... read more

"When I was a kid, I always wanted to be a hero." The protagonist of the story. After living in the countryside for a long time, in order to attend his high school, he decides to move to Tokyo and stays at a boarding house runs by his relatives. When he was young, he was passionately longing to be a Hero of Justice, while being adored by the adults in his neighborhood. He was totally absorbed in his hero's role and activity. As he gets older, he realizes that what he did looks pitiful and turns himself into a completely "normal" student. During his childhood, he was traumatized from being bitten by a stray dog while he was protecting Mikuri, so he is now afraid of dogs, and the bite wound still remains on his arm. His alter-ego is the Crimson Hero "Fire Forge" who can control fire. Appearing when the heroines are in a pinch, he strikes down the evil organization with his fist.

♀ f

"I'm the class president. When it's time to be in control, I have an obligation to do so." A first-year student and a classmate of Hayato and Mikuri. Giving an impression of being slim, but she is actually strong. She has black hair that reaches... read more

"I'm the class president. When it's time to be in control, I have an obligation to do so." A first-year student and a classmate of Hayato and Mikuri. Giving an impression of being slim, but she is actually strong. She has black hair that reaches down to her waist and distinctive almond eyes. Because she values discipline and is a strict type, she somewhat distances herself from her classmates, but she never refuses any request and she is in fact honest and sociable. Her parents disappeared after getting into a debt, perhaps because of this reason, she has a strong passion when it comes to learning, while also being a self-supporting student. That is when, as a result of getting into a good part-time job that she discovers accidentally, she ends up being the "Black Snow", the leader of an evil organization, commanding the Arkaid Fighters and planning to carry out evil operations earnestly without fail.

♀ f

"I'm too noble, maybe this is why I'm unapproachable......" Hayato's classmate and the granddaughter of the school principal, Ootone Morihiro. She lives in a luxurious mansion particularly distinctive even for her neighborhood. She comes from a region far away from the city, and up until now, she ... read more

"I'm too noble, maybe this is why I'm unapproachable......" Hayato's classmate and the granddaughter of the school principal, Ootone Morihiro. She lives in a luxurious mansion particularly distinctive even for her neighborhood. She comes from a region far away from the city, and up until now, she has always been pampered by those around her, so she is not good at making friends. Coupled with her behaving haughtily, she is unable to fit it and becomes isolated, but in the process, she meets Hayato and Mikuri and they gradually become friends. Her alter-ego is the disguised heroine "Assault Cop", affiliated with the Security Department of the Metropolitan Police Department​. Not only Arkner, which often causes trouble in the city, but Marron Branche is also her apprehension target. By the way, she does not have any sexual knowledge and seriously thinks that babies are born just by stroking.

♀ f

"It's all right. Because I'll protect you, Hayato-kun." Hayato's cousin and classmate. She has an older sister who is one year older than her and attends the same school, Shirakawa Momoyo. Adorable like a small animal, an airheaded beautiful gi... read more

"It's all right. Because I'll protect you, Hayato-kun." Hayato's cousin and classmate. She has an older sister who is one year older than her and attends the same school, Shirakawa Momoyo. Adorable like a small animal, an airheaded beautiful girl, even in her class, she has many fans, both boys and girls alike. However, if she becomes too airheaded and dangerous, they would act as her protectors and keep her away from anything ecchi. When she was young, she was attacked by a stray dog, but Hayato came to her rescue. Since then, even though she had not seen him for many years, she continues to think of him wholeheartedly. When donning a battle suit invented by her sister Momoyo, she transforms into a Heroine of Justice "Marron Branche". In this form, she often acts and says things that could not have possibly came from her usual airheaded beautiful girl personality, and when she reverts back, after a while, she would look back on herself, extremely embarrassed and alone in agony.

♀ f

"......Next time, would you like to play together?" A third-year student at the school and the oldest student in the boarding house. But no matter how one looks at it, she appears to be younger than the others. Even in the boarding house, for some reason, she stays a shut-in, spending her days abs... read more

"......Next time, would you like to play together?" A third-year student at the school and the oldest student in the boarding house. But no matter how one looks at it, she appears to be younger than the others. Even in the boarding house, for some reason, she stays a shut-in, spending her days absorbing in video games, the Internet, and so on. She is the type to thoroughly sticks to anything that grabs her interest and does not hesitate to spend time on it without eating or sleeping. Recently, she has been doing a video game livestreaming, her streams which show only the flat-chested tank top, have become very popular due to the fact that her nipples are almost visible yet still invisible. Her alter-ego is the ninja "Kagiroi" and there seems to be a big secret about her true identity, but she is not bothered by it at all and always doing things her own pace.

♀ f

"Fascinating, isn't it? How learning the technology is." A new teacher who recently begins to work at the school. She teaches physics and is the homeroom teacher of Hayato's class. She looks very young and could be mistaken for a student teacher. In addition, because she treats the students like f... read more

"Fascinating, isn't it? How learning the technology is." A new teacher who recently begins to work at the school. She teaches physics and is the homeroom teacher of Hayato's class. She looks very young and could be mistaken for a student teacher. In addition, because she treats the students like friends, she gains a lot of popularity. However, as a matter of fact, she has deep enviousness and a vindictive personality. In her youth, she was in the spotlight due to her beauty and talents in science, but with the appearance of a genius who is even younger than her, Shirakawa Momoyo, she is pushed into the shadow with unpleasant feelings. At that time, she is scouted by the evil organization and becomes "Professor Plum", who is responsible for the Research and Development of the Fighters.

♂ m

"A Hero of Justice is the Hero of Justice, things that they can do, are things that they must do." A muscular man wearing a mask which makes him look like a professional wrestler. His real name is unknown and he is only known as "Kanrinin-san" or "Mask Man-san". Surprisingly, he ... read more

"A Hero of Justice is the Hero of Justice, things that they can do, are things that they must do." A muscular man wearing a mask which makes him look like a professional wrestler. His real name is unknown and he is only known as "Kanrinin-san" or "Mask Man-san". Surprisingly, he gives advice to Hayato, becoming a dependable adult, but has a tendency to avoid contact with the other residents (the girls) other than Hayato as much as possible. It seems that he is hired because the boarding house is already old, and the management (including repairs) could not be handled by Momoyo alone, however, not even the old resident like Mikuri is informed of the details. His professional wrestler physique does not seem to be for show only and his strength is the same as or even more powerful than Marron Branche.

♀ f

"Within you, is there still a Heart of Justice left?" Shirakawa Mikuri's older sister and Hayato's cousin. She is shorter than Mikuri, has a slim figure and an average chest size. On behalf of her parents, who claim to be in the countryside at t... read more

"Within you, is there still a Heart of Justice left?" Shirakawa Mikuri's older sister and Hayato's cousin. She is shorter than Mikuri, has a slim figure and an average chest size. On behalf of her parents, who claim to be in the countryside at the moment, she takes over their duties as an acting landlady. A young genius inventor and a scientist who has created many inventions and obtained her own licenses. A student and an inventor, although she seems to be occupied with being a landlady, she actually does her work pretty well, sharing the responsibility with her sister Mikuri. In her own laboratory​, she always spends time there naked wearing only a white coat. Also, due to her aloof personality, she often involves those close to her in the name of experiment, which ends up causing a commotion.