Naze Boku no Sekai wo Daremo Oboeteinai no ka?

Why Does Nobody Remember Me in This World?

At a time when the great war between the five rival races for domination on earth ended with the victory of humanity under the leadership of the hero Sid, the world suddenly would “be” to “” “just before the eyes of a boy named Kai. Is. In this re -written world, Kai witnesses the defeat of humanity in the war as a result of the absence of Sid – where dragons and demons now rule the land, and Kai itself has become a forgotten existence for all humans. However, after facing the mysterious girl Rinne, Kai pledges to be free from this re -written fortune. In a world without a hero, he has inherited the hero’s sword and martial skills and challenges the powerful enemy’s race to dominate the land.