Lulu Obsidian

Ruri Kurosaki ( Kurosaki Ruri) is a character in the Yu-Gi-Oh! ARC-V anime. She is the Xyz Dimensional counterpart to Zuzu Boyle (Standard Dimension), Selena (Fusion Dimension) and Rin (Synchro Dimension). According to Leo Akaba, Ruri is crucial to his plans.

Etymology
Ruri's name means 'Lapis Lazuli' - a stone that is a deep blue and is greatly prized for its unique intense colour. It also means 'Emerald'. Her family name can be read by separating the two syllables apart. 'Kuro' means 'Black' and 'Saki' means 'Bloom'.

Appearance
Despite not appearing in the anime, some hints of Ruri's appearance have been shown.

Biography
Ruri is Shay's younger sister. At some point, she was kidnapped by their enemies, and has been missing ever since.

Ruri was briefly mentioned during Yuto's flashback. After the latter's encounter against Yugo ended, Shay asked Yuto about the whereabouts of Ruri. Yuto shook his head in response, prompting Shay to curse.

Although Shay initially paid no heed to Zuzu, once he noticed her, he mistook her for Ruri and asked if she had escaped with her own strength, much to Zuzu's confusion. Yuto insisted that Zuzu wasn't Ruri and knocked Shay unconscious before Zuzu's bracelet teleported them away.

When Yuto asked Sora Shiun'in about her whereabouts, Sora suggested that she might be sealed into a card like the other people who were captured by Duel Academy. However, Yuri confirmed when prompted by Zuzu that Ruri was captured by him.

After Shay attempted to quit the Lancers because of Declan's announcement that they would go to the Synchro Dimension, Selena assured him that the Professor must have been taking care of Ruri because he needed Selena and her counterparts.