The Strongest Magician in the Demon Lord's Army Was a Human

The Strongest Magician in the Demon Lord's Army Was a Human (魔王軍最強の魔術師は人間だった) is a Japanese light novel series written by Ryousuke Hata and illustrated by Kuma. It began serialization online in February 2016 on the user-generated novel publishing website Shōsetsuka ni Narō. It was later acquired by Futabasha, who have published five volumes from September 2016 to April 2018 under their Monster Bunko imprint. A manga adaptation with art by Anajiro has been serialized online via Futabasha's Gaugau Monster website since July 2019 and has been collected in eleven tankōbon volumes. An anime television series adaptation produced by Studio A-Cat premiered in July 2024.

Characters

 * Ike (アイク)
 * The adopted grandson of Romberg. He hides his true human self with a hood and mask. He was originally Japanese, but is reincarnated as a human in another world with memories of being Japanese in his past life. At this time, he was raised by a demon named Ron Berg and came to follow him as his grandfather. He is renowned for his incredible magical powers, often taking humans by surprise by being able to use healing magic; demons find compassion a foreign concept and have little understanding of its attribute. Ike eventually weds Satie, his maid and closest companion.
 * The adopted grandson of Romberg. He hides his true human self with a hood and mask. He was originally Japanese, but is reincarnated as a human in another world with memories of being Japanese in his past life. At this time, he was raised by a demon named Ron Berg and came to follow him as his grandfather. He is renowned for his incredible magical powers, often taking humans by surprise by being able to use healing magic; demons find compassion a foreign concept and have little understanding of its attribute. Ike eventually weds Satie, his maid and closest companion.


 * Satie (サティ)
 * Ike's human maid from the town he conquered at the start of the story; Satie accidentally hid in the office Ike was taking a break in and saw his real face. Ike employed her, since she wouldn't attempt poisoning a fellow human; giving her a safe and secure position. She develops feelings for Ike, which Satie cannot understand at first.
 * Ike's human maid from the town he conquered at the start of the story; Satie accidentally hid in the office Ike was taking a break in and saw his real face. Ike employed her, since she wouldn't attempt poisoning a fellow human; giving her a safe and secure position. She develops feelings for Ike, which Satie cannot understand at first.


 * Cefiro (セフィーロ)
 * A sorceress employed in the Demon army; she knows Ike is human and works to keep his identity secret. Cefiro isn't above shameless fanservice just to upset Ike.
 * A sorceress employed in the Demon army; she knows Ike is human and works to keep his identity secret. Cefiro isn't above shameless fanservice just to upset Ike.


 * Dairokuten (ダイロクテン)
 * The Demon Lord, whom is seeking mostly non-aggressive tactics in the war. She was previously Oda Nobunaga in her past life, making her a brilliant tactician and very observant; realizing Ike is human and entrusting coexistence between humans and Demons to him.
 * The Demon Lord, whom is seeking mostly non-aggressive tactics in the war. She was previously Oda Nobunaga in her past life, making her a brilliant tactician and very observant; realizing Ike is human and entrusting coexistence between humans and Demons to him.


 * Lilith (リリス)
 * A virgin succubus enamored with Ike, unaware of his human identity. She views Satie as her rival for master's affection, even though Ike has made it known he has no romantic interest in Lilith.
 * A virgin succubus enamored with Ike, unaware of his human identity. She views Satie as her rival for master's affection, even though Ike has made it known he has no romantic interest in Lilith.


 * Jiron (ジロン)


 * Alistair (アリステア)
 * A female knight whom Ike defeated during his victory. She was going to be executed under false charges by the nobles, but Ike encouraged her to choose life.
 * A female knight whom Ike defeated during his victory. She was going to be executed under false charges by the nobles, but Ike encouraged her to choose life.


 * Fiorentina (フィオレンティーナ)


 * Romberg (ロンベルク)
 * The Demon who adopted Ike. He taught Ike chantless magic and helped design Ike's disguise. He has passed away by the present, but Cefiro was entrusted by Romberg to look after Ike.
 * The Demon who adopted Ike. He taught Ike chantless magic and helped design Ike's disguise. He has passed away by the present, but Cefiro was entrusted by Romberg to look after Ike.

Light novel
Written by Ryousuke Hata, The Strongest Magician in the Demon Lord's Army Was a Human began serialization online on the user-generated novel publishing website Shōsetsuka ni Narō on February 22, 2016. It was later acquired by Futabasha who published five volumes with illustrations by Kuma from September 30, 2016, to April 27, 2018, under their Monster Bunko light novel imprint.

Manga
A manga adaptation illustrated by Anajiro began serialization on Futabasha's Gaugau Monster manga website on July 12, 2019. The manga's chapters have been collected into eleven tankōbon volumes as of June 2024.

Anime
An anime television series adaptation was announced on January 19, 2024. The series is produced by Studio A-Cat and directed by Norihiko Nagahama, with Touko Machida writing series scripts, Masami Sueoka designing the characters, and Kohta Yamamoto composing the music. It premiered on July 3, 2024, on Tokyo MX and BS Asahi. The opening theme is "Ctrl C", performed by Kohta Yamamoto featuring Shun Ikegai, while the ending theme is "I Still", performed by Kohta Yamamoto featuring Maya Akechi. Crunchyroll licensed the series. Medialink licensed the series in Southeast Asia and Oceania (except Australia and New Zealand) for streaming on Ani-One Asia's YouTube channel.