"The original story is called “沙雪の里” done by Kyoden Sanbun"

[URE-031] The Masterpiece Brought To Life!! Original Story By Kyoden Sanbun, The Master Of The Adult Comic World!! The Snow Village First Volume

Yukiko and Hideo are married and have a son, Shuichi. Encouraged by Hideo’s sister Natsumi they move to a remote village in the mountains to seek a more quiet lifestyle out of the city. They will soon discover that life in the village is completely different from what they are used to. The village and the villagers live in a little ecosystem where they developed their own code and their own set of rules. In fact, they live quite apart from the rest of the rest of the world. It’s hard to reach in these mountains, as the transportation methods are scarce. They brew their own sake and grow their food. Even the village chief is in charge of the law. Without telling much spoilers, this family will discover this Village have Old traditions that they will be forced to follow.