Let's start with something light like Kamori route, shall we? Cannibalism is just ok for the start. I think some public location H and 5 CG with different stages of body devouring should be enough for now. The second mandatory route to reveal true route is Yachiru one. This time let's kidnap Yachiru and procede into a long humiliation gang bang scene. What does protagonist do when he finally comes by the end of it? He adds some more steam, of course. Let's finish with more gore and eye gouging.
So, you survived to the true Sachi route that unlocks only after two previous horrible routes? Well done. Now you probably expect the greatest route to be worthy of true route. Sucks to be you, really, because it's not that kind of game. It's a game where true route actually means true corruption route. Hope you saw "Boxing Helena" movie , because you're going to face the disgust of full dismemberment , yes, even in H scenes.