Kuro Elf ni Kawareta Ore no Dungeon Seikatsu: Sanshoku Furo to Jigokutsuki

One day, "disaster" struck, destroying the town and killing Cruz and his sister Artie. However, Cruz woke up to see a dark elf girl named Enju. She asks Cruz, "Do you want your life to end like this, or will you become a god to fight off the 'disaster'?"

(Source: Comic Nova, translated)