Episode 56

"Security's Perfect Encirclement!!" is the fifty-sixth episode of the Yu-Gi-Oh! ARC-V anime.

Synopsis
Yūya and the Lancers have entered the Synchro Dimension, however, he realizes that only Shingo, Serena and Reira are around him. Almost immediately, they are surrounded by Security, thinking Yūya and Serena are Yūgo and Yuzu! While casting a scornful eye at a hesitant and bewildered Yūya, Shingo and Serena begin a Duel against Security! When Yūya and Serena turn the odds against their opponents, more Security appears. Then, however, the sky turns dark...!