I was really intrigued by the description/character art on the page, I really love the premise for this story! However I did run into a few bugs.
After looking at everything in the tree at the start it repeated the dialogue for each item then returned me to the main menu. I restarted and decided not to interact with everything this time and I was able to progress.
When the player character wakes up text on the top of the screen reads "image 'blacksmoke' not found" There were a few more instances where images were unable to be found and it just displayed the text for it.
While I was flirting with the demon and clicked the option that I blush I received this an exception error for the line 432 in script, and says it is a label not found kind of error.
Really hope this information helps you out because I really do love the concept for this/the art/the writing I got to read before it crashed and I would have loved to finish it properly.