RN:the bruise appears

Rei's notebook: The bruise appears #1
Obtained: Automatically when Rei wakes up from Hour I
Replaced by: the bruise spreads
Type: Incidents
I felt a sharp pain in my shoulders when I woke up.
For a moment I thought I could see some kind of bruise on my skin, but when I looked again there was nothing there.
Was it just a dream?
Rei's notebook: The bruise appears #2
Obtained: Automatically in Hour I after waking up
Type: Incidents
The pain flared up again after my dream of the empty house.
Since the vision I had that day I keep seeing the house in my dreams.
The pain I felt when the tattooed woman touched me.
The bruise...
The dream, the house(.)
Are they connected to Yuu somehow?
Or am I just tired?