I'll admit, I wasn't sold immediately but man...
That was REALLY good and I'm excited to see how you take this next. I ain't even here for the romance anymore this story is just so intriguing. I love your interpretation of Frisk, and how much of a manipulative bitch she is, I hope she gets her comeuppance at some point.
If I have any complaints, it's that Chara warms up to (Y/N) wayyyy too quickly, but I understand that there was a lore reason for that, so it's all good.
I'm looking forward to your next chapter, man, I have no doubts that you'll deliver.
Keep up the good work =)