At the Beginning of Demon Slayer, I Was Killed by the Two Pillars of Feng Shui.

When Shi Liusou was only 12 years old, he was devoured by an evil spirit. After being killed by wind and water pillars in the Battle of Infinite City, at the cost of some of his memories, he used the last vampire technique to go back in time and return to the night when his family was killed by evil spirits. From then on, Shiliuzou only had one belief in his heart, which was to completely kill the evil ghosts! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.