Hi Yuuto, I played through the entirety of the Golden Age and wanted to leave some opinions on the matter.
I really liked this visual novel. It's a very wholesome (interpret that how you will) story that builds up from getting to know the girls from romantic love to sexual love. Something worth noting is that none of the characters seemed out of place to me and all have unique characteristics; Chica was described "normal" for instance, but it still makes her different from the others, and Roger was a very understanding and friendly manager. The artists that drew everyone for this novel were fantastic, and I am excited to see what you and the team come up with next. For instance, Freddy was a character that I do not feel too much attachment to in many other FNiA games; her being a tsundere was an interesting concept (idk if unique, I'd have to do more research) and the artists did a great job conveying it.
One of the other things I liked was how very relatable and encouraging it was; not the protagonist meeting animatronic girls, but how the protagonist comes from a place of deep hurt and learning to move on from grief. He moves on from one family to a new one that truly loves him.
One major detail I would like to talk about is [spoiler] the implementation of William's character. As some people have pointed out when reviewing a different FNaF fan-game, Dormitabis, people did not like the Purple Guy's character. One YouTuber (who I will not name despite me liking him and his content, but unsure if he wants to be associated with FNiA) says that he doesn't think that the Purple Guy being a pedo "was something that people were clamoring for."
In this game, William is also described as a pedophile. However, unlike Dormitabis, I believed you tackled this type of character in the most respectful way you possibly could. And as someone who despises pedophiles, it is something I truly appreciate.
Overall, this novel is fantastic and while there are some minor spelling and grammatical mistakes, I can excuse that for the other aspects of quality put into this novel. (And considering the updates being seen on Twitter, the visuals look like they're going to get even better)
I'm looking forward to the rest of the novel being complete. (Admittingly, including the characters doing the nasty with the protagonist, take that however you will) ;)