Had this game on the backlog due to the style, and I just got around to it. Honestly, this game is most likely 80% AI by volume. Even the story has telltale patterns such as "it's not x it's y" and "That's not x. That's y". It is slightly hidden due to the text not all being visible at once, but once you notice it, the AI use is obvious.
I can understand using AI for the visuals since not everyone is an artist. But isn't the point of using AI for the visuals to be able to focus on the story? If the story isn't yours then what is the point of making this? At this amount of AI usage, the reader might as well just look at the images alone and get a better experience.
Also personal preference, but I don't like the voices used for the sex scenes, they don't seem to fit, but then again, personal preference.