The Dream Traveler Wants a Perfect Ending

I haven't played this game much, and I still haven't finished the tutorial. Every time I play as a survivor, it's the same routine. Repairing the machine, getting on the chair, being rescued by a friend, getting on the chair again, being rescued by a friend, repairing the machine, learning to walk the ghost like a friend, the friend getting on the chair, getting on the chair again, ascending to heaven. That's so cool, just like my life. Playing this game really gives me nightmares, and the worst part is that I tend to dream about Shi whenever I have a nightmare. I've gone back to the game a few times, and I dreamed about him a few times each time. Why is the tutorial in this game so difficult? Timid but wants to have fun.

I'd like to know, are there multiple main characters in the book, or just one?

Custom-made covers make it even more fun.

The concept was good, but the perspective shifts were too chaotic and confusing, so I didn't stick with it.

Respond to me, dear reader!

Has the author finished updating the story? If so, I'll follow it to the end. If not, but the author will continue updating, I'll still follow it to the end.