she kinda irritates me

I can get that, I don't really like the "dense, selfless maiden troupe who everyone falls in love with because she's so kind and different", character either. Despite this, it isn't too bad, hopefully we get to see her gain more power and stop letting the novel's plot sway her.

Well, like other isekai manga,the protagonist just blindly believe the novel. In this case, the sentiment is strong since she was brought to the world after crying out, hoping for Alejandro's happiness. And not to forget that she saw him as a kid