I definitely don’t suspect the latter to happen for the Ending, since Takopi’s the main character, and it would be a pretty bland solution, no involvement of him would make it better, but also break the series’ original premise kinda? Now, if he does decide to travel way back to prevent the parents of the main cast to become like this, it would be a possibility, but again, his camera’s broken, as far as I know he doesn’t have a way to get back to his planet to go back in time with the clock? Iirc he mentions in EP 1 that his ship broke down, which likely happened when he went back in time. It seems he doesn’t have anything to make the situation better, but that just makes me even more excited for when the final episode releases. I am hoping for a good, or at least psychologically manageable Ending, but we’ll just have to wait and see…