Core

Core is Yūya Sakaki's pet cat in the Yu-Gi-Oh! ARC-V anime.

Appearance
Core is an odd-eyed cat with white fur featuring a brown a heart-shaped pattern on its back and heterochromia iridum, having a yellow right eye and a blue left eye, wearing a red tie.

Etymology
En's name along with Core's forms the word "encore".

History
After waking up from a dream, Yūya exited his bedroom to be greeted by Core and En. Later on, Core is seen with other cats and dogs that Yōko Sakaki adopted.