In Another World With My Smartphone Novel Volume 20 was written by Patora Fuyuhara and illustrated by Eiji Usatsuka.

It’s a Prehistoric Ritual

The conflict with the wicked god has finally come to an end, and Touya now presides over a unified planet. There may be peace, but this world is still far from a paradise! It’s time for him to help resolve centuries-long misunderstandings between feuding nations, deal with new matters of interest in the divine realm, and handle a few small national matters that are tossed his way...all while planning his long-awaited weddings. What’s a groom-to-be to do?