It gets stupider every time. Lippe has no social awareness and flaunts abnormal amount of knowledge and experience right and left, and nobody bats an eye or question the fact. Only person to have problems with it is an asshole who takes it personal. Really, I'm not sure that author did think it through.
She could be possessed for all we know, because magic is part of this setting, but nooo, she is a cute girl so everything is fine... It feels like self-indulgent story about ultimately liked person. What's more she feels much too mature for a teen. Sorry for the rant, but I'm just disappointed. Especially when I compare it with The Monster Duchess.