In my previous life i was a saint, but now I want to cut corners.

Summary

Renaria remembers being a saint in her previous life. In the past, holy magic was a life-threatening thing. In order to save the princess who fell in love with her fiancé, the second prince, Renaria of the previous life runs out of holy magic and dies. Fortunately, thanks to the guardian spirits, this world was a world where magic could be used without losing lives. Renaria's guardian spirit is an unpopular aerial. But ... that? Maybe you can use the magic of the previous life? If you find out that you are a saint, marry the royal family! ?? I don't want to get involved with royalty anymore!