To be honest there are nothing to steal so encoding is stupid.You can also edit the code and change the sex of npcs. But since the code is encoded you'll have to decode it first. Then you can just change their sex using vscode or notepad++ with replace tool. It's a lengthy process, but it's just a one time change for multiple playthroughs. I've been doing it for the past few updates.
Won't share the method since the dev has encoded it for a reason, I'll share if he gives permission.
But if you really want it then do some googling, you'll figure it out eventually.
What is really problematic with the TF system is FUNDAMENTAL deep to the CONCEPT...
There are 2 valid approach exist:
1st that puts weight to the process of TF with short summary.
2nd that focus on TF results and their impact to the rest of game.
Both approach gives opportunity push out easy to implement interesting ,fun,sexy content ....even as a dom or sub...