Oh, like Trillian said, this is a love story. Because love has no reason. It's a pity that she never knew that her whims were ever so close to the truth.
In view of the extraordinary whimsy and vastness of The Hitchhiker's Guide to the Galaxy, I chose to use its movie version as the background. But even the movie version is still too imaginative for me, so I believe there will be a lot of OOC situations.
Disclaimer: If only Marvin were mine