As long I know, the dom route has much less content than the sub path, dear. I think you have found all available content. The dom path it's mostly, if not completely, focused on some events with the nerd only. The patrons of this games voted on preference on submissive path, so the developer made the sub route the main development path for now. The last 2-3 versions gave us dom content, so you will have to wait a few more versions to get more stuff on this path.
First think that it's a male prison, so you will see a lot of male to male stuff. However, if we judge from MC's feminization stuff on his submissive stuff and the domination of MC on nerd at dominance path, it's very possible to see the nerd feminized by MC. Perhaps with a same or similar way that we see at the MC's submissive path. But for now, there is nothing as dominant path is underdeveloped, so we will have to way for the future updates.
It sounds like you have an old save dear. I remember this black screen from the early versions. Except, if an old bug came back again. In general lines, old saves tend to be broken in some updates.
Then it must be a bug. If you write down what path you followed and what you did so far until this black screen, it will be easier to reproduce it and find a solution. Though, I can say that this issue happened to me in the past. It must be a specific condition that triggers it.
I'm starting to wonder if it's a bug because we didn't explore during the different fem levels.
I can't fix your save game because it is encoded to edit with a notepad or a word editor. Though, I opened the game's file (My apologies to the creator) and I found out why you landed into the blank page. There is a condition when you have played football and have manly chest, you may land on a blank page. It looks like a forgotten page from the creator and somehow you didn't do humiliate stuff. For me the most easy way is to place a back step to the blank page or an escape button in case you are trapped there and you can't back step on browser.
There is guide.txt with the game. You can get a lot of hints from there. I did a mistake. You don't need to increase chest. I tried to write down a way to help find it, but it looks random how to get in some situations and it took me more time that I was willing to spend. So I drop for now and maybe someone else be more effective than me to help you. In short you need access to chef's and Ismael's cells. Try to get there.
