Hunter x Hunter: Sun Breathing Technique

Roy Zoldyck was never meant to be a true assassin. Born into the infamous Zoldyck family, he carried both the bloodline’s burden and a secret: he was a reincarnator. When he finally awakens Nen, his Hatsu reveals a path unlike any other—“The Gate of Cognition”—a door that allows him to step into worlds born of his memories.

And so begins his second life inside the universe of Demon Slayer. No longer Roy the assassin, but Kamado Yoriichi, eldest son of the Kamado family, standing beside Tanjiro, Nezuko, and the others years before tragedy strikes. With Sun Breathing as his foundation and Nen coursing through his veins, Roy must defy fate itself and change a story where death always lurks in the snow.

A tale where the discipline of Nen collides with the ferocity of Breathing Styles. Where assassins’ arts merge with demon-slaying blades. And where one young man carries the weight of two worlds—Hunter × Hunter and Demon Slayer—on his shoulders.

Will Roy’s determination be enough to resist the darkness of both universes? Or will he lose himself, a blade forged in fire but bent by blood?