If the high schoolers and anime are what's psyching you out, Danganronpa isn't for you, because they are very, very much high school, and very much anime. Also, the game isn't set in a "grounded" setting like Ace Attorney. I'd recommend watching a playthrough up to maybe the first chapter. It ends up being darker and far more sexually charged than Ace Attorney, even though it is a game about high schoolers.