Otherworldly Dungeon Master
At 13 Kirishima Kai lost what he loved most, his family.
Traumatized from the experience he unconsciously sealed all his memories related to his family with the exception of a single recurring dream of his little sisters last moments.
6 years later while trying to save a young highschooler his life was abruptly cut short.
When asked what he would like to do with his new life by the beautiful voice ringing in his head he recalled the book he had recently read, without waiting for his reply he heard the voice ring [Very well, enjoy your new life] [EHH?!]
Given a second chance at life in a world full of swords and magic, Kai swore that this time he would never let others destroy what he holds dear.