|Name Kanji||室井 美和子 Muroi Miwako|
|Occupation||Wife of Head Priest|
|Anime Debut||Episode 1|
|Voice Actor||Jennifer Seman|
Miwako was born in a neighboring village before she married the priest where she wasn't able to conceive a child until finally Seishin was conceived. As the shrine needed a heir, and the whole village wished for this, she was under constant pressure and felt very ashamed. Because of this, she treasured her son when he was born even more.
As the wife of the head priest, she earned the trust and respect of the villagers. She dresses in traditional kimono and speaks in a dignified but polite manner. Since her husband Nobuaki suffered a stroke and has been confined to his bed,
she cares for him most of the time.
As the villagers started dying off, Mistuo Tadokoro and his mother asked her if they could live with her. She agreed and said she would be happy to have them. She agrees that they had been feeling a little depressed for a while. Mitsuo promised to protect her and her family.
When her son, Seishin, tried to help Sunako leave the Kirishiki mansion, they both stopped at the temple to temporarily get away from the villagers who were chasing them. As the villagers approached the temple, they were not able to find the escapees. The villagers questioned all the household including Miwako but they denied any involvement with the actions of Seishin.
The villagers, who are already volatile from the situation, lashed out on all the temple personnel, including Miwako, killing all of them in the process. Seishin deeply regrets and mourns for his mother afterwards.
- The name Miwako means "beautiful" (美) (mi), "harmony, peace" (和) (wa) and "child" (子) (ko).
- Miwako's surname Muroi means "room, greenhouse, cellar" (室) (muro) and "well, mine shaft, pit" (井) (i).
- Her maiden name Yamamura means "mountain, hill" (山) (yama) and "town, village" (村) (mura).