Oh wow OHRRPGCE, now this is an engine from before even the good old days. The second game making tool I ever tried if I remember right. I'm amazed it's still active!
The character sprite is cute and I like the colors. Your plan sounds somewhat ambitious for what I remember OHRRPGCE being able to do easily, but a lot of it can be adapted into RPG features perhaps. I wish you luck, I would love to see a horny game made in this engine, it may actually be the first one of it's kind!