Wise Man's Grandchild[1] (賢者の孫, Kenja no Mago) is a Japanese light novel series written by Tsuyoshi Yoshioka and illustrated by Seiji Kikuchi.

A manga adaptation with illustration by Shunsuke Ogata began serialization on Kadokawa Shoten's Young Ace Up website from March 2016.

In the capital, Shin rescues two girls, Maria and Sizilien, from thugs, and later he inaugurates a club that consists of him and others.

A manga adaptation, illustrated by Shunsuke Ogata began serialization on Kadokawa Shoten's Young Ace Up website since March 2016.

A spin-off manga illustrated by Shūji Nishizawa, titled Wise Man's Grandchild SP, began serialization in the Young Ace Up website in July 2019.