Water Magician - OTS Tournament Pack 4

The Water Magician is a Japanese light novel series written by Tadashi Kubō and illustrated by Hana Amano. It initially began serialization on the user-generated novel publishing website Shōsetsuka ni Narō in April 2020. It was later acquired by TO Books who began publishing it under their TO Bunko imprint in March 2021. A manga adaptation illustrated by Bokutengo began serialization on the Nico Nico Seiga website under TO Books' Comic Corona brand on September 20, 2021. An anime television series adaptation produced by Typhoon Graphics and Wonderland aired from July to September 2025.