Twelve-Winged Dark Seraphim
I don’t mind much when the author decides to change some information throughout the book. But when it constantly changes back and forth it starts messing with the story itself. Like the system of Ordinary, primitive, mutant, sacred-blood and super, and the spirit being Squire, knight, Aristocrat, Royal and King. Thorn Baron is a royal but with a aristocrat title, i think. But then she can become a king spirit by the mushroom