
The younger step-sister of the protagonist. Shut in her room all day, she was secretly the illustrator for her brothers light novels and is popular on the web, though nobody knows that she is actually a 12-year-old girl.
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The younger step-sister of the protagonist. Shut in her room all day, she was secretly the illustrator for her brothers light novels and is popular on the web, though nobody knows that she is actually a 12-year-old girl.

Izumi Masamune is the protagonist of the story. He is a novelist that goes by the pen name "Izumi Masamune," his same name. He started out his novels in middle school after winning a light novel writing contest. He hopes to get closer to his Younger Step-sister. In chapter 5, Izumi admitted and confessed his love for his sister but was rejected.


A science teacher who does not believe in anything that has to do with the occult and will turn a blind eye toward anything paranormal even if she herself witnesses it.


An older teacher at Fujigaya Girls' Academy. She is often seen patrolling the halls, chiding the younger students for making too much noise or for running around the compound. She tries to uphold the school's prestige and dignity and the image of the school housing well-mannered young ladies. She is now a co-worker of Yamashina Hinako though she once taught her. She recognises Oono Orie immediately during the school's drama festival (in Akira's second year of high school), much to Orie's embarrassment. Sensei seems surprised that Orie looks grown up now, and Orie laments to her ex-teacher that she's now a grown woman despite her still-childish actions and looks.