When Isshiki Otsutsuki revealed that the Karma mark on Kawaki’s body would cause him to reborn, it seemed to solve the mystery of why Kawaki began the Boruto series as an adversary. In the flashback, he was the one who destroyed Konoha, killed Naruto, and was about to hit Boruto.
According to theories, Isshiki’s consciousness was implanted in Kawaki’s body and was then used to carry out the alien’s commands. Fans were left to come up with new ideas as to whether Kawaki would become evil after Isshiki died and Kawaki lost his Karma mark in the manga. Another possibility has arisen as a result of Chapter #56, and it’s one that Kawaki himself proposes.