Everything about Sylvie feels like it's telegraphing that she's going to be either an outright malevolent force in our MC's life, or she'll "merely" be an insufferable twat and general headache to deal with, but not someone antagonistic who seeks to fuck over MC's life and work and efforts.
Though I do think it's maybe somewhere in the middle, especially with the time reset being factored in. But if the MC was in some way shamed by her family for "being unable to become the Saint", that feels like a sore spot that, I suspect, Sylvie has a habit of needling further.
Should be an interesting arc though, given our Protagonist is on her 2nd go-around and has fore-/hind-sight backing her up going in, now.
I just hope Anna's gonna be okay. Better yet, I hope MC "wins over" Anna in spite of (to spite?) Sylvie, in the pursuit of helping her with whatever Anna's got going on.
That'd be even better revenge, in my book. Bloodless, arguably not MC's fault - just so happens "the next Saintess likes her 2nd cousin more than her mother. Shame."
Thx for the TL