Thank you for your reply. Although I only just noticed this comment, it's been three years since I finished this game without even realizing it.
As you said, I gave up and completed the game before reaching the time layer, but it's worth mentioning that I am indeed developing a remake. In fact, the remake already contains more content than the original game. It's just that I haven't finished other language versions yet, and I have temporarily put it aside because I’ve been updating an even older game recently.