Dimensional counterparts

A dimensional counterpart is a phenomenon featured in the Yu-Gi-Oh! ARC-V anime, in which a person from one dimension resembles another person from another dimension.

History
Accordingly to Leo Akaba's actions, it is hinted that these counterparts are important to his plans. Not only is he interested in Selena's unknown abilities, but for some mysterious reason he interested in getting a hold of Yuzu Hiragi stating that she is the "fourth piece" he needs, having already had Yuri capture Ruri and Rin for him.

Mistaken Identities
A common recurrence is for a character to confuse one counterpart with another counterpart due to their identical facial structures. Instances of confusion include:
 * Yuzu, Silvio, and Nakajima mistaking Yuto for Yuya
 * Yuto and Shay mistaking Yuzu for Ruri
 * Yuya, Gong, Silvio, Mieru, Sora, and Nakajima mistaking Selena for Yuzu
 * Ken and Makoto mistaking Yugo for Yuya
 * Yuzu mistaking Yuri for Yuya, then Yugo
 * Yugo mistaking Yuzu for Rin
 * Yugo mistaking Yuto for Yuri

Yuya Sakaki
Yuya was the first character to have a dimensional counterpart. Each of these counterparts has a Dimensional Dragon and also can enter a rampant state of mind, which has been given the title "Berserk Mode" by fans.

Yuzu Hiragi
The second character to be known to have dimensional counterparts was Yuzu. Similar to Yuya and his counterparts having Dimensional Dragons to help signify themselves as counterparts, Yuzu and her counterparts wear unique jeweled bracelets, which have mysterious abilities.