>>52658262I mean just look at these journal entries:
>I was expecting one new life to treasure, but what fortune to be blessed with this gift as well!Probably the new life to treasure is Arven's.
>I'm so close to creating a world like the one in the book—a paradise where we three can live happily together forever. I must make it real.The beginning of the obsession
>I need more people. More time. That woman/man walked out not long after the boy was born.Reading between the lines they are consumed more and more about their work and now Arven is simply the boy. Probably they were so crazy that the opposite version professor who walked out thought that they were insane. And the divergence point for the two games being one but not both of the professors suggests that their default nature is not to become obsessed with creating paradise