Naze Boku no Sekai wo Daremo Oboeteinai no ka?

Why Does Nobody Remember Me in This World?

なぜ僕の世界を誰も覚えていないのか？

13/07/2024 6.2 0 PG-13

Synopsis

In a war against four powerful races—angels, demons, undeads, and humanoid beasts—humanity triumphed thanks to its champion Sid, who defeated the other races' champions and sealed their armies in four pyramids. In an era where Sid's existence is merely a legend, Kai Sakura Vento is among the conscripts tasked with monitoring the pyramids, fearing the escape of these ancient foes. One peaceful day, while spending time with his friend Jeanne E. Anise, the world is suddenly "overwritten," transporting Kai to an alternate reality where humanity has nearly been annihilated by the demons and forced into hiding. To make matters worse, his very existence has been erased from this world; all of his friends, including Jeanne, who leads the local resistance efforts in this world, have forgotten about him. Trying to investigate the remnants of his former world, Kai encounters Rinne, an enigmatic young woman trapped in a pyramid. Mysteriously inheriting Sid's legendary sword Codeholder, Kai manages to free Rinne from her imprisonment. Determined to fix this reality, Kai joins forces with Rinne and Jeanne to free humanity from demonic rule. But if the valiant soldier wants to have a chance at returning to his original world, he will first have to uncover the cause behind the mysterious alteration of reality.