In Another World with My Smartphone Novel Volume 12 was written by Patora Fuyuhara and features illustrations by Eiji Usatsuka.

Mochizuki Touya carries on his carefree life in another world, the looming birth of a wicked god and the peculiar behavior of the intelligent Phrase are no reason for him to panic! A distress call from a mysterious island forces him to jump into action, but what he discovers there may very well flip his entire world upside down... Pass through the open door to find a tale of swords, sorcery, and ancient legacies of antiquated mystery!