Tale of the Secret Saint (Light Novel) Vol. 10, A

HEAD SAINT…FIA?!
During a standoff between King Cerulean and his mother, the queen dowager and head saint, Cerulean makes a shocking announcement: he’s recommending Fia as a candidate for the next head saint! Now, all eyes are on Fia as preparations for the head saint selection event get underway…yet she boldly starts using her powers all over the place! But Fia can just blame the holy stones for any magical feats, right? With such an air-tight plan, what could possibly go wrong?
Series Overview: Born into a long line of knights, Fia is determined to become a knight herself, just like all her siblings. But a brush with death awakens memories of her past life as a Saint–a woman who wields rare, powerful healing and protection magic–along with the ability to use that magic herself! The downside is that Fia also remembers her past life’s untimely death, and the danger she will be in if anyone finds out what she really is. She vows to stay on her knighthood path and keep her powers a secret forever! But how can she resist using her newfound powers when they’re just so useful?