Always Near (NearxMello/crossover)

"Quote"
"So that continued the door that you can see the door I can enter and vice versa also there's a chance you won't see your surroundings but I will this is just a theory though."
Mello follows Near into a dimensional portal where they meet the second Mel who's at fault for bringing them into her demension. Mel explains that the only way to get home is she use her necklace to travel to other worlds until they get back to thier own where the charm will disappear.
The two rivals find themselves in the world of shingeki no kyojin before the Titan attack , the world of hetalia and thanks to a mess up by England, separate demensions where they must fight for themselves.