Yeah I get it's "trash" story and piecing is basically like axed from the get go but, whatever.
Don't understand WHY would Ayana parents commit sudoku and leaving her daughter to witness it anyway, leaving her scarred for life, it was obvious she would either discover them or feel terrible after the suicide.
Kuromine shouldn't blame her for her parents accidental crash, she wasn't at fault... but let's see what will happen...
Haruno either knew exactly the relation of Ayana or suspected from the get go, either way she didn't tell him the truth. What a great friend.
Also, the trash isn't "appearing" suddenly in Ayana room, that's Riku apartment, she gave Kuromine the keys (in p6) when Ayana had psychotic breakdown.
Come on guys, this story is so easy to follow...