Naze Boku no Sekai wo Daremo Oboeteinai no ka?

“Why does no one remember the true world?” In an era defined by a brutal struggle for supremacy among five great races, humanity ultimately emerged victorious under the leadership of the hero Sid. Yet, in a single incomprehensible instant, that reality is overwritten before the eyes of a young boy named Kai. The triumphant history he knew vanishes, replaced by a rewritten world where humanity lost the war due to Sid’s absence. Now, dragons and demons rule the earth, and Kai himself has been entirely erased from human memory. Alone and unrecognized in this altered timeline, Kai encounters a mysterious girl named Rinne. Their meeting sparks his resolve to shatter the cruel fate imposed upon this fabricated reality. Refusing to accept a world devoid of hope, he takes up the mantle of the missing hero. Armed with Sid’s legendary sword and trained in his martial techniques, Kai steps forward into a hostile dominion controlled by overwhelming enemy races. In a world that has forgotten both its savior and its truth, he wages a solitary rebellion to reclaim the future that was stolen from mankind.