Wow, filling up all the save slots? Honestly, that’s an achievement in itself— props to you for that Jasmine ^^
If you ever want to delete saves one at a time, just hover your mouse over the slot you want to delete and hit the Delete key on your keyboard. Need to clear out a bunch at once? You can do a mass delete by going to: Local Disk (C:) > Users > [YourUsername] > AppData > Roaming > RenPy
Look for the folder with Chromatic Agape’s name, and you’ll find all the save files there. From that point, you can select and delete them in bulk.
About the dom/sub toggle— this only affects the NSFW scene! It’ll determine whether you’re the one initiating the sexual activities. When the time comes, you’ll get a little prompt like (in Rosario’s route):
“Do you want me to spoil you?” — this puts you in the sub role.
“Do you want to spoil me?” — this puts you in the dom role.
And that’s it~ Let me know if you have any more questions!