How do I turn on futa? I just unlocked the scenes area and it says "futa: off"
In your closest, you can go to the memory room. There you can revisit previous scenes. At the top right, there's a torch, there you can turn futa on and off.
But be warned, this does not affect future scenes. If you have futa off, all scenes you view will have futa off. But going through the memory room, there you can view them with futa, and video versa.