If this story follows along Future Trunk's timeline as the endgame, then you won't be weirded out for too long.
Seriously though, I've been digging the idea of exploring Future Trunk's timeline and the events that lead up to him traveling back to the past. How Future Gohan handled things on his own for a time and where Videl could've been during the whole Android saga.
This is an Omake (A special feature that accompanies an anime, such as a collection of deleted scenes), something extra to the story, notice at the end she's passed out, so it's right before she wakes up on page 79 of the other.