After the Arc Cradle incident came to an end, the perpetual motion machine Moment brought the city unprecedented growth for decades under the leadership of Yusei Fudo, the hero who saved New Domino City. Technology advanced rapidly, and dueling gave rise to all kinds of new cards and rules. But a mysterious organization from a century ago was quietly carrying out some kind of plan. Against this backdrop, a white-haired girl duelist with a carefree, laid-back personality and formidable skill, nicknamed the Reaper Girl, Usami Yuki, begins a brand-new adventure. (P.S. I may occasionally be late with updates, but I'll never abandon the story!)