Game that initially appears to be a porn VN starring a Perfectly Generic Male Protagonist, except when you get to the "here's how the sex mechanics work" portion of the intro the girl has a Magnitude 10 klutz moment and accidentally kills him, upon which the viewpoint switches to her and the rest of the game is a reverse investigative procedural about trying to cover up the fake lead's death.
Each of the love interests should have different ways of covering it up - Shy Brainy Girl knows how to make acid to dissolve the corpse in the bathtub, Sporty Girl has an easier time schlepping the corpse around, Socialite Girl can lean on her contacts to lie for her, etc.. The game doesn't tell you which approaches will work for which love interest, so the player has to remember the information they learned while they were the fake protagonist in order to get the girl out of it.
Ideally, all of that information would be really easy to miss if the player was rushing to the sex scenes.
