Dark Synchro Dimension

The Dark Synchro Dimension (ダークシンクロ次元 Dāku Shinkuro Jigen) is one of the many Summon Dimensions in Taylor Gorrell's Yu-Gi-Oh! timeline, where all Duelists use Dark Synchro Monsters. Unlike the rest of the Dimensions, inhabitants of the Dark Synchro Dimension are not completely the same as normal humans, sporting the characteristic black scleras seen on the, who originally used Dark Synchro Monsters. However, the populace is as varied as any Dimension, having people running all points of the morality spectrum.

As stated by Yusa, 's counterpart in this Dimension, Dark Synchro Dimension inhabitants went through "a strange phase in evolution", resulting not only in their strange eyes, but also in some of them (Yusa included) possessing superhuman abilities. Prior to the start of its debut fic, only the knew of the Dark Synchro Dimension's existence and believed them to be evil, but many of them change their minds after meeting some of the inhabitants.

In Yu-Gi-Oh! Arc-7, the Dark Synchro Dimension is still a rumor in the (while all the other Dimensions are common knowledge), but starting in Season 2, when Dark Synchro Monsters are becoming more common in the Standard Dimension, people from the Dark Synchro Dimension immigrate to the Standard Dimension, and eventually their Dimension becomes common knowledge as well.