Simply put, the Kokugan is also known as the black eye, and it is wielded by none other than incredibly powerful Isshiki ...

The Kokugan is a unique back eye with 8 yellow wheel spokes inside it. This ability is quite special and it was unique to ...

Kawaki’s eye, known as Kokugan, has been roughly translated as “Black Eye” or “Dark Eye." When we compare it with the Jogan, Boruto's Doujutsu, it highlights an interesting parallel.

Kokugan as seen in the anime (Image via Studio Pierrot) This has also been implied by the known origins of Kawaki and Boruto's dojutsu. The Kokugan is a dojutsu Kawaki inherited from Isshiki ...