Think it would make more sense/interesting if Territory devouer was SSS class instead,and used that to take over another land which would evolve to Demon Lair
Ch 7 Subjugate the Territory, Construction That Was a Hundred Times More Efficient!
Roy just maid her day, if only she could hear his thoughts :.( then the romance plot would thicken as much as my love for plastic woman/men (No gender biase :)