Yuna is upbeat and lively in her daily life as a middle school student and the main character of this story. Optimistic, she always looks on the bright side of things regardless of the situation. When the going gets tough, though, she is the one everyone relies on so they acknowledge her superiority. Her special ability is her martial arts skills that she was taught by her parents.

Mimori is Yuna’s best friend and classmate. She is a great sympathizer as well. Her home is in the same neighborhood as Yuna’s, so they often spend time together. She is gentle and refined, but she is a natural when it comes to computers, sweets making, and others, so she has a rather deep side to herself as well. She is also known as Sumi Washio.

Fu is the captain of the Hero Club. She has a refreshing personality, and as such, her older sister disposition has a charm to it that allows her to pull others to her rather easily and quickly. Her sister Itsuki is so cute, it cannot be helped. Perfect at chores, she is also a great cook. She can also eat quite a bit.

Itsuki is Fu’s younger sister and she loves her older sister. She often acts like a small animal, residing in her sister’s shadow. She is a first year student trying to do her best daily. Itsuki’s hobby is fortune telling, and she has a reputation for being accurate with her tarot card readings.

Karin has been transferred into the school and joins the Hero Club. She has undergone official training, and as such, she is good against humans and ghosts. Karin is skilled, so she is very proud and hates losing. She is not the best at making friends, either.

Sonoko is a former hero. She lost her physical ability so severely that she cannot lead an ordinary life easily. Yuna and Togo know the hidden truth of Heroes from Sonoko's body. Her innate character is optimistic and easygoing.