Hey, just finished the Nutaku version of the game and I really enjoyed it.
I'm just missing the Mansion Duo scene to have everything unlocked (well except for alternative endings and normal version of a few scenes).
Could I get an hint on where to find this one ? None of the npcs in the mansion seem to start any sort of event, all remaining doors are locked and the help menu doesn't do anything since I have no undergoing quest. I guess I missed something.