Kiraware Seijo desu ga, Shindara Shinu hodo Aisarete

Rurudi, a saint despised by people out of jealousy and envy, is murdered by someone. However, through a miraculous intervention, she returns to life. While concealing her true identity, she begins investigating the four knights who are suspects in her murder. But as she gets closer to them, she discovers something unexpected: the very men who once loathed her now love her “to death.” Source: MU