This author is a hitman, he misleads and waits, and just when the time is right... HE STRIKES... but he is not quick, oh no... he will have his fun, and he will be methodical with it to make it last.
Yeah, I had a feeling we'd get a chapter with the ghost of the real Yuzu sooner or later. Meeting in the dream world seems like the best way to do it to leave it a little bit ambiguous as to whether it really is Yuzu's ghost or just Suika dreaming about meeting Yuzu, but I don't have any problem with the existence of ghosts in a world that also has transforming animals.
I heard animals are very sensitive to the supernatural and ghosts tend to interact with them. As well as children tend to be the center of paranormal activities sometimes. This chapter alone makes you think about the connection of the living to the after life.