Did she not say that the two other parts take place after the current main character’s deaths (this is based of your comment ofc)
That’s a spoiler because most readers don’t know this. Unless the artist is spreading misinformation ofc (this isn’t passive aggressive btw. Some creators spread misinformation mixed with actual information to give readers hints while not giving them too much)

Okay... So... I just saw the artist post on X and she said the story will be divided in 3 different parts. The first part is about how the world ended (the story of Shuraka and Tei), and the 2 is way later, after their deaths... And that's the PROBLEM! They will die ?????? Fuck, I'm already so attached to them! I even bought on of the oficial merchandise. I'm not sure I can deal with a bad ending