What is the nsfc version? On your main page it doesn't lead to this particular version.
Viewing post in [Release] Nekomata NSFC Version 1.1 comments
NSFC (Not Safe for Cats) Version ist the Adult Version. Once Nekomata was a Jam game with no adult content. Since i put the Adult stuff in i needed a "extra label" for it. So all Adult versions has the NSFC label. The not adult version Nekomata 1.3 is no longer available. But some sites in the internet has still this old version of the game.