Siariz no Shugosha

[From Laughing in Quarantine]

A master-slave fantasy between the guardian who lost his beloved and the legendary saint! Sabi, who is shunned as a heretic in his town, meets Alice, a girl with a special fate. Alice chooses Sabi as her partner—the "Guardian"—but she loses her life to a strange incident in the town. But she suddenly comes back to life with the soul of the exalted "Holy Saint" that resides inside her…?!