While the romance is going to be dragged out, (thankfully since he's confirmed to be 13), the MC's treatment of herself is more annoying.
She has no backstory, doubts, ambitions other than Alejandaro.
What about her family? Her life? Why is she so accepting of being a servant?
No Isekai character would be happy with the back-breaking labour shown here. Especially since our world has so many modern inventions.
I hope the author gives the MC some depth because months of being a servant is ridiculous.