source- https://www.dlsite.com/maniax/circle/profile/=/maker_id/RG14831.html
Artist- https://www.pixiv.net/en/users/29088547/artworks

Premise- ・In a certain place in a certain prefecture, there was a strange custom that had continued since ancient times.
It was a "sex contest" in which those who had a petition would seclude themselves naked in a cave of the gods and win by making the other person orgasm three times.

The villages near the cave of the gods had made it an annual custom to send a representative from each village to participate in the contest in order to pray for a bountiful harvest.

Narue from ○○ village and Taki from △△ village, although they had no grudge against each other, carried the wishes of their villages and engaged in a naked contest.
The two women licked each other's breasts, thrust into each other's private parts, covered in sweat, saliva, and bodily fluids, and brought each other to orgasm, and the winner was decided...!?

・Sex between women Almost entirely naked
・Tentacle depiction towards the end
・Happy ending

・34 pages Grayscale