Wolf and Parchment Novel Volume 4 is written by Isuna Hasekura.

In Rausbourne, second greatest port city of the Winfield Kingdom, Myuri and Col have run into heavily-armed trouble once again. It seems that Col's reputation and deeds at the Twilight Cardinal have worsened the hostility surrounding the Winfiel Kingdom and the Church. If nothing is done, there is no doubt that hard fighting will break out. Right when it seems like they've run out of options, the one to offer them a chance to turn things around is none other than Lawrence's old acquaintance, Abe the beautiful trader! But will it be enough to stop the drums of war?