Let Go of That Mortal

This article is a fan work of "Release That Witch". After the Second War of Divine Will, human beings shrank to the last corner of the continent. Facing the four kingdoms that had just been established by mortals, the remnants of the Witches' Union chose to bring order to the chaos and suppress them bloodyly. A ruthless system was established with the sole purpose of cultivating witches and oppressing mortals. In this environment, can Roland, who has traveled back from the ending of the original world line, establish an industrial system again and defeat the devil?