Voice: Nobunaga Shimazaki

A second-year student at Raizen High School, located in Amamiya City. He has the power to seal away the power of the Spirits within his own body. He continues to aid the Spirits, assisting his foster sister Kotori, who serves as commander of Ratatoskr. He is skilled at housework and cooking due to his busy parents often being absent.

Voice: Marina Inoue

CODE NAME: PRINCESS

The first Spirit Shido saved. She's energetic, positive, innocent, and never doubts anything she's told. She becomes Shido's classmate after being ordered by Ratatoskr to do so. She loves to eat, and loves Kinako Bread and Shido's home cooking more than anything. Well, she actually loves Shido more than anything.

Her Angel is Sandalphon.

Voice: Misuzu Togashi

Shido's classmate and (self-proclaimed?) girlfriend. She's the smartest and most athletic girl at Raizen High School, and has a mysterious air to her. She's part of the Japan Ground Self-Defense Force's Anti-Spirit Team (AST). She lost her parents in a Spirit attack, and has sworn vengeance against them. Though her advances on Shido are fairly cool and collected, she's fairly aggressive.

Voice: Ayana Taketatsu

CODE NAME: EFEET

Shido's foster sister who became a Spirit due to the meddling of a certain person. When she has her trademark white ribbon on, she's Shido's innocent little sister—however, when she has a black ribbon, she becomes the commander of the secret organization Ratatoskr that seeks to solve the Spirit problem by communicating with them.

Her Angel is Camael.

Voice: Iori Nomizu

CODE NAME: HERMIT

The second Spirit saved by Shido. She's a quiet, shy spirit, but her best friend—a puppet on her left hand named "Yoshinon"—is upbeat and loves to joke around. Yoshino appears to be somewhat of an oasis amongst the other rowdy Spirits to Shido.

Her Angel is Zadkiel.

Voice: Asami Sanada

CODE NAME: NIGHTMARE

The evilest Spirit who is the only one Shido hasn't been able to save. She's a special kind of Spirit that sometimes even intentionally kills humans. It's certain that she's acting with a goal in mind, but no one knows what that goal is.

Her Angel is Zaphkiel.

Voice: Maaya Uchida

CODE NAME: BERSERK

A Spirit Shido met on Raizen High School's field trip. She competes with the other Spirit Yuzuru to seduce Shido with charm in order to prove that she's the real Yamai. She is sealed away alongside Yuzuru, and Shido suggests that they both remain alive together.

Her Angel is the same as Yuzuru's: Raphael.

Voice: Sarah Emi Bridcutt

CODE NAME: BERSERK

A Spirit who met Shido on Narumi Island alongside Kaguya. Now that her power's been sealed by Shido, she enjoys teasing Kaguya. She respects Origami, who told her how to seduce Shido, and calls her "Master Origami" as such.

Her Angel is the same as Kaguya's: Raphael.

Voice: Minori Chihara

CODE NAME: DIVA

Formerly a normal human pop star, she became a Spirit due to the power of the Phantom. She is very popular due to her amazing beauty and charming singing voice. She hated men with a passion, but since having her power sealed away, she's become quite affectionate with Shido.

Her Angel is Gabriel.

Voice: Ayumi Mano

CODE NAME: WITCH

A "mature" Spirit with a finely-proportioned body like a model. She's 170 cm tall, and her three sizes are 94-62-90. She was friendly toward Shido at first, but things have changed. She begins targeting Shido as her fated enemy she must defeat.

Her Angel is Haniel.