My Teacher Is An SSS Legend

I never imagined I'd die at 17. Twenty-five seemed young, at thirty I might have had kids, and fifty at least meant half a century of life. But 17? I hadn't even reached adulthood. Yet here I was, in a barren battlefield beside a gravely injured woman with fiery red hair. Little did I know, she was an enigmatic SSS legend. Now, it's my turn to carve out my own legend. This is the story of how I was reborn into a world of desolation and danger, and how I learned to survive and thrive under the guidance of an SSS legend!