Skeleton Sister
スケルトンシスター
A nun named Roselie, who is extremely afraid of the dark, uses black magic to summon a deceased man to keep her company at night. As with all such dark magic rituals, there is a consequence: each night, her soul temporarily belongs to the man she summoned, and the only way for her to reclaim it permanently is by killing him. The story explores whether she will ultimately decide to take his life.