I Regressed to My Ruined Family

I was born as the oldest of a renowned swordsman family, and became stronger faster than anyone. Yet, I could not stop the dragons, a great disaster that had appeared on the continent. I closed my eyes in my final moments, thinking everything was over. I really thought it was over… But when I opened my eyes, I was back in the past. A past that was very different from the world I knew. “What? Is this really my body? Why don’t I have any mana?”