The Reincarnation of the Strongest Exorcist in Another World (最強陰陽師の異世界転生記 ～下僕の妖怪どもに比べてモンスターが弱すぎるんだが～) is a Japanese light novel series written by Kiichi Kosuzu and illustrated by Shiso (first volume) and Kihiro Yuzuki (from second volume). It began serialization online in December 2018 on the user-generated novel publishing website Shōsetsuka ni Narō. It was later acquired by Futabasha, who have published five volumes since July 2019 under their M Novels imprint. They later republished the series with Yuunagi as the new illustrator since July 2022 under their Monster Bunko label. A manga adaptation with art by Toshinori Okazaki has been serialized online via Futabasha's Gaugau Monster website since May 2020. It has been collected in eleven tankōbon volumes. An anime television series adaptation produced by Studio Blanc aired from January to April 2023.
Premise
Powerful exorcist Haruyoshi Kugano is betrayed and fatally wounded by his student. Using a reincarnation spell to be reborn, Haruyoshi vows to become unbeatable in his new life. However, his spell goes awry; rather than being reborn in Japan, his soul ends up in another world similar to premodern Europe. Reborn as Seika Lamprogue, he sees the world uses magic that functions differently than his art, though this doesn't deter him from his plans. He now just wants a peaceful life, but his curiosity and iota of compassion repeatedly lead him into trouble.