An office worker from the old world meets an office worker from the new world.
Diavolo meets Tooru.
What will happen when all the members of Araki's mansion gather to face the JoJos?
(The blurb is short and weak, so you'll have to read the story to find out. As for the timeline, it takes place after Father Pucci creates the new world, when the old and new worlds merge. Also, some of the plot has been changed, and some characters' abilities have been altered, but it's no big deal. Just enjoy the ride.)