I still have one question. Who owns the building? Donnald ? The cat ?Mikko, who is clearly not a simple cat (Maybe a shape shifter )since he understands human language perfectly and can protect Lukas from destiny  in this dream.

Actually, there are a couple of lines that says directly who owns the building haha. One is in an optional path, the other is in the main path (impossible to miss). If you find it, be sure not to share it here!