He traveled through time and became Enichi Tsukuni, who was hailed as the "strongest", but at the beginning of his awakening, he was attacked by Muzu Kibutsuji - he was forcibly transformed into a ghost and deprived of all his memories.
His instinctive fighting consciousness allowed him to kill the ancestor of the evil ghost in chaos, but it also plunged him into a deeper fog: as a ghost, he held the Nichirin Sword that could kill his kind; he lost his memory, but he had innate control over the "breathing method".
In this world without tragedy, who is he? Why does it exist? Where will the intertwined power of humans and ghosts in his body lead him?
The "strongest ghost" who has lost his memory will re-travel through this purgatory of light and darkness with a mystery all over his body, looking for his own answers - and his forgotten destiny.
Philosophy: When the "strongest man" Ji Kunoyi was deprived of his memory, twisted into a "ghost", and personally ended the existence of the ancestor of evil ghosts, Mu Ke, he not only lost his past memories and his identity as a "human", but also fell into the ultimate confusion of "who am I?"