Mukashi Mukashi no Ohanashi.

To save the village, Suzu, a virgin, was offered as a living sacrifice. However, Inugami-sama, who was said to be nothing but frightening, turned out to be a beautiful man who was deceived and trapped by humans. He tells Suzu that in return for granting to her the power of god, she should offer her virginity, then kissing her kindly.