The mood is definitely darker and more secretive now in Yuuma’s story. He’s laid something on top of his lamp which makes it darker even when the lamp is on.
Last time someone knocked on the window who was it I don't remember if they ever said who it was
It was a knock he went to check saw nothing turned around and there was a human hand (from what it looked like) on the window (it looked like it was attached to a body so no severed hands)