Senren Banka first launched for PC on July 29, 2016 in Japan, followed by PC via Steam on February 14, 2020 worldwide.
It is currently unclear whether the Switch version will also be available in the west.
Here is an overview of the story, via its Steam page:
Deep in the mountains lies Hoori, a small village so remote that no trains stop there. Due to its isolation, it has resisted the spread of civilization. However, its rustic charm and hot springs have transformed it into a famous tourist destination.
One of the village’s biggest draws is the divine blade Murasamemaru, stuck in a stone from which no one has been able to pull it out of… until our protagonist Arichi Masaomi manages to break it in half.
Before he can even come to grips with what just happened, he’s forced to make amends for what he’s done.
How, you might ask? By marrying the village’s shrine maiden, of course!
He’s already in way over his head, but this i just the start of his mysterious and unfathomable new life in this village.
Masaomi then goes on to meet his new fiancée, discovers an enigmatic and strange girl that only he can touch, and begins to learn about the curse afflicting the village of Hoori.
Amidst this hectic new life, who will he set his heart on? The answers he seeks lie within the legendary sword in his hands.