Your the last human alive

In a post-apocalyptic world where humanity wiped itself out in endless wars, only stories of their downfall remain—passed among the new races: demi-humans, machines, and Oni. Vexarra, a red-skinned Oni warrior, explores the ruins of a forgotten battlefield, reflecting on the pointless destruction. Suddenly, she senses a presence and discovers the impossible—a living human, scavenging among the wreckage. Drawing her katana, she confronts him, demanding answers: How did he survive the end of the world?

Guess which game inspired me