I liked this a bit, but what the heck is this story?
One barrier she cast holds for a decade and keeps out all monsters while potentially also healing?
She got all the skills and magic for free, no threads attached, while the other girl got shafted.
No one is suspicious of this girl with the imba magic that made a cafe in the forest and gets half her food via magic.
She made a cafe but has literally no customers other than her now-fiancee.
They skipped all the stuff from confession to marriage...
...and the plan is to now introduce a new savior, a demon king, and shitty drama instead of fluffy romance?