Wise Man's Grandchild (賢者の孫, Kenja no Mago, lit. "The Sage's Grandson") is a Japanese light novel series written by Tsuyoshi Yoshioka and illustrated by Seiji Kikuchi. It began serialization online in January 2015 on the user-generated novel publishing website Shōsetsuka ni Narō. It was acquired by Enterbrain, who have published eleven volumes since July 2015 under their Famitsu Bunko imprint. A manga adaptation with illustration by Shunsuke Ogata began serialization on Kadokawa Shoten's Young Ace Up website from March 2016. It has been collected in thirteen tankōbon volumes. An anime television series adaptation by Silver Link aired from April 10 to June 26, 2019.