After reaching the end of chapter 25 I'm skeptical in continuing reading this, if they truly threw in a "Mary Sue" into this i'd say Youjo Senki is on the path of becoming trash.
@GabrielH Conflict is a universal in storytelling. If your main character is a Mary Sue who faces no real adversity, the story becomes a boring chore to follow, because there is no room for suspension of disbelief and the outcome is always assured. That's what's wrong with it.
I find it interesting that we have the introduction of a Mary Sue that is the antagonist to our protagonist. A force of god in both a figurative sense and literal sense against our protagonist who seems to fight against it with everything that they have.
The hell is this manga? How come I only found this now? The puppet/comic-style sarcastic jokes remind me of Tezuka's dark joke. The MC's nuts, as well as "Existence X".
And all the misunderstanding; might as well call this manga "The Girl Misunderstood by The World".
I purchased the LNs however English publications is only up to the 4th volume with the 5th volume expected to release sometime in 2019 (already have it pre-ordered)