Disclaimer: I do not own Yu-Gi-Oh! Season 0, Yu-Gi-Oh!, Yu-Gi-Oh! 5ds nor Yu-Gi-Oh! Arc-V
Day 7: Crossover
Ushio Tetsu had seen a lot of weird things in his life.
He had first realized that there was something terribly wrong with the world when he was still at High School. People never believed him when he told them that he knew Yugi Moto personally. But even if they did, they would never believe the story of their first encounter. Ushio himself had been the very first victim of the awakened Millennium Puzzle. The creepy alter ego of the Puzzle had challenged him to a Shadow Game in which both of them could very easily lose their hands, with the prize being money. Ushio really wanted to bang his head on a wall when he thought back to how foolish he had been. All he did as a teenager was bullying people for their money, and the following month he had passed in the Psychiatric yard had taught him a very hard lesson.
In the following years, Ushio studied hard and managed to become a police officer, while ignoring all those weird lights and monsters and every other paranormal event. However, he still picked up a deck and learned how to duel, half because it was a new requirement for the job and half because he had a feeling that he would need it.
Next thing he knew, the Zero Reverse. A huge earthquake my ass! Ushio knew that anything that involved a pillar of light that felt even worse than his Penalty Game and literary cut the land in half could not be 'just an earthquake'. He suspected it, but the truth was something he could never have guessed not even in the twenty following years. That Satellite brat name Yusei that he was always chasing after turned out to be the son of the two hot-shot scientists of New Domino City that were leading the top secret Ener-D Reactor project. Which reactor soon went to a meltdown because their lunatic co-worker wanted to awake the power of the Earthbound Immortals and the Netherworld.
For the next year or so Ushio found himself right next to the center of action. The Crimson Dragon, dirty politics, Psychic duelists, brain control, negative level monsters (that is against the rules, damn it!), a machine army and time-traveling androids, all of that turned the City that was clean on the surface but dirty in its core into a true clear and brilliant jewel.
Now, eight years later, Ushio, who was only a couple of years away from retirement as a police officer, was chasing on the streets of New Domino what could be the source of yet another round of supernatural and sci-fi mumbo jumbo. That Hugo boy who was always causing tons of trouble with his Psychic? (it felt different) powers and the teleporting dragon. Add in the mix the girl behind him whose name was Yuzu but looked like Rin from the 'Missing Persons' list and the rumors about monsters with no levels and a black card frame and something among the lines of 'Pendulum', and Ushio Tetsu knew that New Domino City was in for yet another crazy ride.
He just hoped that they were ready for it.