I Regressed To My Ruined Family

synopsis 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?” “where did the castle go? why’s there only a wooden house left?” “…what? the dragons and humans made a non-aggression pact?” a family that had fallen and was on the brink of ruin. a family whose writing of divination had vanished. and a body in which no mana could be found! “…i’ll have to keep myself busy from now on.” the great hero of a renowned swordsman family. he is back in the past, in a ‘parallel world’. when i returned home, my family was ruined