Theres supposed to be some werewolves further in but its likely the nekomata boss fight is broken.
Trying again or on a different save might get it to work, but dont spend like an hour on it, it shouldnt take more than a few minutes at most i think.
There's not much at all past it aside from the Werewolves enemies which never got a working pregnancy and only a short h scene with very old artwor. The game is still incomplete as I'm in process of redoing the entire combat system.