HopelessHikikomori

That's outside my control.

Well, to not spoil things too much... She is healed for Jack shit. Her body is 99% in the same state as she was previously.

I just realized the original premise you are trying to argue. What the actual hell are you trying to say? How would you know that? All of Undertale might as well happened in the span of a day. Implying that humans can't grow through training is actual insanity. I can see the point in monsters, but even then that's a highly contentious statement.

Yeah, and before that they literally reached into their soul to reawaken all the friends along the way. They absolutely mogged them in a fight of ideals.

Well, as I established in this chapter, from now on, she is truly embracing to becoming Rin Satsuki. I'll do something the next time she shows up, so you don't need to worry about this, no matter how many years it might take.

Also, to add. That's Hexadecimal code that basically reads Rin Satsuki.

That's just all of Rin Satsuki in all of her glory. All the leftover code in the game after she was scrapped. That's literally the extend of her official existence. Everything after that is speculation!

Tbf, it's the first two chapters + synopsis. Also it would have been an utter nightmare to write the section if I didn't differentiate them somewhere. Though, I am open to change it. You think it would have been easier if I called her "Star" or would it have made no difference? Calling them both Rin Satsuki while Rin Satsuki and Rin Satsuki are in the scene with be stupid. How should I do it the next time?

She technically is.

You are also forgetting that Frisk absolutely mogged hyper death Asriel with Determination alone. You are only taking in universe gameplay mechanics into account, without fencing any deeper into the Lore l.