There is no Willy route or CG, and as for Charlie, there are only 2 scenes, one is on Day 1 at his room, and one is on Day 48 in the gym showers. I do know how to get 2 scenes with Zac, a guy I assume most of u don't even know exist, gotta check the days on my saves, will let u guys know as soon as I'm back home cuz I didn't get that scene on the android version, just pc.