Counterpartshipping

Counterpartshipping is the slash ship between Yuya Sakaki and Yuto from the Yu-Gi-Oh! fandom.

Canon
Yuto and Yuya first met when Yuto was dueling Sora. Yuya joined the duel against Yuto. Soon after the duel Yugo came and dueled Yuto. Yuto lost the duel with Yugo, saved Yuya from an attack from Yugo, and was absorbed by Yuya. Sharing the same beliefs of dueling should be used for making people smile and bring happiness Yuto trusted him with his card: Dark Rebellion Xyz Dragon. After Yuto merged with Yuya it caused Yuya to go into a Awakened state where he no longer cares for making people and happy and enjoys hurting others in duels. Yuya was scared of Yuto's anger but eventually Yuya understood Yuto's pain for losing his home and friends after seeing his memories. Shortly after arriving at Heartland City in the Xyz Dimension, Yuto began actively interacting with Yuya within his subconscious and both quickly came to fully trust each other and work together to fight Duel Academy.

Fanon
This is one of the less popular ships in the fandom due to Yuzu's feelings towards Yuya and Ruri's feelings towards Yuto. While Yuya and Yuto are mostly thought of having a brotherly relationship by fans or are seen as having a bromance, some fans make jokes about "Yuto being inside of Yuya".

Despite the lack of screen time of Yuto being alive with Yuya their chemistry hits off fast from Yuto saving Yuya from Yugo's attack and giving him his card.

Fandom
FAN FICTION

Trivia

 * This ship is so named because Yuto is one of Yuya's dimensional counterparts.