Unlike the previous 2 Beast games, this one is has a full overworld rather than the usual menu-driven adventure set-up. It also differs from the previous games in that, aside from the introductory shower sequence, there is no adult content. You play a red-headed female in a school environment.
Anex86 will run the game, but won't properly highlight choices, making the game difficult to play. I suggest running it in T98-Next.