So it's not a patch issue then? Seems weird that no one on the main topic mentioned that, I looked through every page.
And does that only affect that chapter? As in, can I talk to those NPC's in later chapters without it forcing me down the School route at that point? Seems dumb if I can't, since there are endings in the normal route that require a high enough lewd lvl...
Edit: I just did a fresh playthrough after deleting all of my saves+config file, ignored all non-quest NPC's and just rushed the missions. Went into School route. Gonna try a playthrough without the partial and see if anything changes.
2nd edit: Just reinstalled the entire game, did not install partial. Did the same thing as in previous edit, went into normal route. This definitely appears to be a patch issue. Did you accidentally mess up a flag somewhere?