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

Renaria suddenly remembers her memories from her previous life. In the past, she was a saintess who was proficient in light magic, However, using this magic is life-threatening… The princess fakes, attempting to kill herself because she is in love with Renarias Fiance, the second prince. Using holy magic as is the duty of a saintess, she loses her life reviving the princess. Now she is starting off her teenage yea...