Yu-Gi-Oh! is a prominent Japanese manga series crafted by Kazuki Takahashi. The plot revolves around Yugi Mutou, a boy who unlocks a gaming alter-ego within himself after solving the ancient Millennium Puzzle. The manga's popularity led to the development of a vast media franchise, encompassing spin-off manga and anime series, a trading card game, and a multitude of video games. Central to the franchise is the fictional trading card game, Duel Monsters, which has been transformed into a real-world trading card game. The original manga was adapted into two separate anime series, contributing to Yu-Gi-Oh!'s stature as one of the highest-grossing media franchises globally.