The basic thing about this Au is that Tom is the member that leaves to follow his dreams elsewhere, being these seven years (or perhaps much less) in which the others keep having adventures, sometimes without realizing it as usual. Tom does not belong to the army, but to the navy because he enjoys being near the sea. The army used to bring bitter memories of when he went to war with the rest of his friends (Moving Targets), which was not a good experience for him Not to be confused with Matt's World, although the idea is similar, Swapworld was created 4 months before this and already had designed the leader of the navy.