Bog Standard Isekai - Chapter 28Book 1.

A generation’s War God, once overlooking the world with disdain, had fallen into disgrace because of a conspiracy, becoming a mere son-in-law. However, what nobody had expected was that it was all part of his grand scheme, and when the winds of change blew, he, the king, returned, with the power to overturn seas and move mountains, as a dragon ascended to the heavens!

“Mr. Kira, many people believe that the current dueling environment has become increasingly toxic, with dominant trends of heavy traps and defensive, closed-off playstyles. They say this unhealthy atmosphere was brought about by you, as the new generation's Duel King. What do you think about this?” a reporter asked during an interview.“Slander! Pure slander!”Kira was angered by this accusation.“Why say it was me who started this?”“Dueling has always been like this!”It's not his fault.Who let him play Yu-Gi-OH!

Over a million years ago, the first human contracted with the first Spirit. Ever since then, Spirit use has become commonplace. Humans used Spirits to carry items and start fires. Eventually, even start wars. Thousands upon thousands of years past and one day, one human did the impossible. He transcended his mortality and ascended to the realm above.