Laughing Under the Clouds: Gaiden Part 1 & 2

In the years after the imperial restoration in central Japan a forceful snake, which rears its head once every 300 years, is about to rise again. The snake shall herald calamity and catastrophe. The three successors to the local shrine ally with other forces to block the serpentine. The snake has its own deadly and swift allies however who will do its bidding abetting its rise.