The story pretty much starts out like this:

Spike's world gets consumed by Darkness and is sent to Traverse Town with a blade-like weapon in the shape of a giant key in hand. He quickly finds out that his friends are alive but are scattered across different worlds.

Finding a Gummi Ship and learning how to use it, Spike sets out to look for them. As he travels to each world to try and find his friends, he would occasionally pick up a chick or two from that world who would fall for him.

This story could be humanized, anthro, or whatever you prefer.

Main shipping: Spike x crossover harem but gals from FIM can be added as well if you like.

This story like👍👍👍👍👍👍👍👍👍👍👍👍