Standard Dimension Arc

Standard Dimension Arc is the first story arc of Yu-Gi-Oh! ARC-V anime series. It follows Yūya Sakaki from You Show Duel School who discovered a new summoning mechanic called Pendulum Summon, working hard to develop the new summoning method and become a professional Entertainment Duelist by participating in Maiami Championship. In the midst of this, he and his friends started to learn of the existence of other dimensions and got involved into inter dimensional warfare.

Discovery of Pendulum Summon
While training at You Show Duel School with his childhood friend Noboru Gongenzaka, Yūya was visited by Nico Smiley who offered him a chance to Duel the current Duel Champion,