Ubaware Seijo to Noroware Kishidan no Seiiki Hikikomori Slow Life

When she breaks the monsters' curses, she finds herself in a knightly order filled with beautiful men!

Kohane, a summoned saint, is stripped of her position and betrothal by the schemes of a junior saint. At the shrine she flees to, she meets a group of legendary knights who have been turned into monsters by a curse. While breaking their curse, she leads a comfortable, slow life with the strongest holy magic!

https://www.cmoa.jp/title/289768/