I’m the Slit-Eyed Character at the Academy, but I’m not the Mastermind Chapter 85 Discussion

I finally decided to sign up, and for a very bad reason, yes, that's what this review is about

I really had high hopes for this novel because of the Luterus arc, the author presented a neat story by involving the reader's emotions, but, really, the author ruined it with this character named Luna

how do I say it? The author really ruined this novel with just one character, I'm annoyed how MC's movements are so limited because of it, Luna girl this is why MC is getting weird looks, ughhh I want to write more because of how annoyed I am, but really, I can't think of anything besides swear words to describe how tr@sh Luna is