the webnovel itself isn't really complete as is, and doesn't tell all of the story, but it does explain certain things, and goes into the backstories behind some of the other characters, such as Teto
PreludeChapter 1: The collapse creeps upon us, bringing silenceChapter 2: A dream flower bloomed in the roadsideChapter 3: A sound fading in the interlude of one act [research paper]
Research on a dragon-type high-dimensional phase body
We, the members of council, found another dragon body exists in a different space, and tried to displace the first dragon's space to the second dragon's space by using a magic eye mask and diva; the first dragon looks like a human girl.
The trial was successful, but the first dragon lost its memory, and it became impossible to approach the first dragon from 3D, even for diva. By synchronizing with the second dragon, diva can go into the first dragon's space, though it is impossible to come back.
Without diva, the dragon gets furious and frightens humans again, so we have to carefully take care of "her." The best way is not to let her remember she is a dragon, thus we named her "Miku", and began to treat her like a human.