Ranking Up as a Duel King, Starting with Possessing Labrynth

You Mi, who never misses a chance to rank up while out walking, is accidentally sent to other worlds by the Creator Dragon. He trades the right to return to his own world for the condition of "becoming the Duel King," beginning a journey where he meets and competes with the protagonists of every Yu-Gi-Oh! series.

During Duelist Kingdom, You Mi takes on the persona of Labrynth from the Silver Castle and banters with Aibo in the arena, using a deck packed with disruption cards. At Duel Academy, the Branded Fallen of Albaz, who starts out alone and has to pick up all his strength along the way, teams up with Jaden Yuki to send Professor Pot of Greed's blood pressure soaring. In New Domino City, he's the mastermind behind the Satisfaction Town gang when he's out of the car, Primula, and once he gets in, he's Mo Ye, Swordsoul Master, wielding mystical Eastern powers.

"The facts show that when you're choosing a signature card, a waifu card is definitely an option that will leave you at a loss for words.", Mr. You Mi, who wishes to remain anonymous

Current worlds: DM Duelist City-GX-5D's-The Dark Side of Dimensions-ZEXAL-ARC-V-Vrains

(PS: If you dislike seeing transmigrators other than the protagonist, or prefer a light and cheerful tone, you can skip the GX arc. You can start from 5D's after DM without missing any connections.)