True Happiness (rewrite version)

What if Conan meets a girl from another universe? One that already has, not all, but most of the knowledge about the future? How much would that change his life? And what about this girl painted in grey? How much will this sudden shift in universes change her life? Will both of their lives be better... Or worse?
A new and hopefully better version of my first fanfic.

I hope you like it and enjoy reading it!!