Voice: Aoi Yūki

An existence that "rises up" from inside of high school student Fujika Miyashita when the "Peril to the World" approaches. He calls himself an "automatic being," and the word is that he kills someone when they are at their most beautiful point in order not to let them get any uglier as they age.

Voice: Aoi Yūki

A female student at the prefectural private school Shinyo Academy. She's a fairly normal, sweet, and honest girl, but when peril to the world comes near, Boogiepop's personality "rises up" inside of her, and she loses all memories of when Boogiepop takes over her. She is dating her upperclassman, Keiji Takeda.

Voice: Saori Ōnishi

A self-proclaimed "ally of justice" and a student at the prefectural private school Shinyo Academy. She is called "Fire Witch" because of the aura she gives off. She is excellent at combat, and can even hold her own when facing off against those with special powers.

Voice: Reina Kondo

Nagi's classmate and Touka's best friend. She started getting interested in criminal psychology after being surviving being targeted by a serial killer, and is now called the "Professor of Murder." She is a fervent fan of Nagi's father, Seiichi Kirima.

Voice: Chiaki Kobayashi

A third-year in high school attending the prefectural private school Shinyo Academy. His employment at a design office has already been decided, which is possibly why he stands out from his peers. He begins a secret friendship with Boogiepop after a strange encounter.

Voice: Shino Shimoji

A student at Shinyo Academy who is part of the school's morals committee. She dotes on Keiji Takeda since they're on the same committee. She's a bit of a pushover, and can't say no when she's asked to do something. Because of this, she ends up getting involved in an incident that occurs at the school...

Voice: Ayaka Suwa

A third-year student at the prefectural private school Shinyo Academy. She doesn't have many female friends due to her gaudy appearance. Despite this, she's one of the only people who understands Nagi Kirishima, and stays by her side. She is dating her underclassman Shiro Tanaka. She is one of the only people who can communicate with the mysterious being "Echoes."

Voice: Junya Enoki

A fairly normal boy who is so ordinary that it almost seems as if he could blend into just about anywhere. However, he is very good at hanging out in large groups, and even had the experience of confessing his love to Nagi Kirishima and being turned down. What worlds lie deep inside of his heart?

Voice: Aoi Ichikawa

A first-year student in the archery club. He began dating his upperclassman Kamikishiro after she confessed her love to him. According to Kamikishiro, she fell in love with him because he looked cool doing archery. Because of his serious, no-nonsense personality, he's a bit troubled by his relationship with his wild girlfriend.

Voice: Ayana Taketatsu

A second-year student at Shoyo Academy who is such a genius that she was top of her class at her prep school on the mock exams, passing up all of her other classmates. However, her smarts aren't all people talk about—her beauty is also the talk of the classroom. She is considered unapproachable due to her high specs, but there's something else hidden behind that pretty face...

Voice: Kōki Miyata

Echoes was taken in by Kamikishiro, who just happened to run into him by chance as he was wandering the town. He's covered in wounds and dressed in tattered clothes, and can only repeat the words that others say to him. Unhindered by this impediment, he is able to tell Kamikishiro that he is called Echoes.