Seven thousand years after the XY century, a girl found a strange diary in the Earth Ruins Museum...
Title:
Hello.
This is the XY century.
This is a diary.
I write.
This is just a diary of dreams.
Or a sudden inspiration.
Maybe it's a made-up story.
Maybe it's a song.
It may be a poem or an article.
Maybe I saw something interesting and just commented.
It could be all kinds of imaginative thinking.
It may also be seeing a comment on something.
But it doesn't matter.
This diary is very important.
Whether it's for you or for me.
Okay, let me tell you one by one!
Right, right!
My name is - Sanqian...
Concept: In the dream world, maybe it is just like reality, strange and scary...