The graphics don't move much it just switches between different still pictures.
This is not a game for the weak of heart! As I said in the title it is S&M so it's bloody and sadistic. Also some may consider it shota because even though in America it is claimed all characters are eighteen or older it isn't true at all some of the inmates including Guys (the protagonist) and Io are only teenagers and you can tell just from looking at them, and reading the dialogue only confirms it.
The storyline always follows Guys trying to prove his innocence so he can leave prison. Some endings are good others are bad....