Gyakusatsu Saiban summary:

In a tranquil rural landscape, isolated and high in the mountains sits Hisatate Town. Amagase Ryou, recently moved there from the city with his family. On his first day he witnesses the strange traditions of this place and cannot believe it, as anyone who breaks the rules is punished without mercy... The residents are viciously beaten for trivial reasons. What does the future hold for the newcomers when one of them break the rules?