Heyo, glad you enjoyed the story so far! Just wanted to correct a few misunderstandings and assumptions.
1) The "female Sidd" that you saw is art of Sidd's birth mother, not an alt version of Sidd. She appears in a brief flashback in Chapter 3 during the brawling tournament. She was explicitly referred to as "Mels the Beast," an entirely separate person from Sidd.
2) I draw a lot of non-canon art of the characters outside of the VN for fun. Unless it's actually added to the story, don't consider it canon.
3) Chapter 2 onward, all NSFW scenes have been confined to the mini-episode sections of Temptation's Ballad and are completely skippable for folks who aren't interested in the lewd scenes or any specific kinks.
4) Sidd has never had a scene that involved pronoun confusion or him questioning his gender. He's only had scenes questioning his sexuality. Where did you see this?
I understand some kinks I explore outside the VN may not be people's cup of tea, but I don't see how I've made any indication that I would derail the entirety of the story to fit some fun art that I drew on the side. Proclaiming to everyone that some "experience-ruining content change" will hit Temptation's Ballad based completely off of your own assumptions just feels... bad.