Demon slayer: Reborn in Demon slayer during the Sengoku era(Original)

This story will base on the event that occured way before the original story, during the sengoku era(the golden era of demon slayers) This story will touch topics on the warring state era of the ancient clans and the creation of breath techniques, The strongest demon slayer, the first breath user, the first hashiras the secret behind the marks and so many more ––––––– Young Akira Shoujo later to be known as Tatsuya Uzui a staunch anime fan was just involved in a plane crash which led to his reincarnation to a world he doesn't know anything about yet Please do note that Vol 1: Introduction/ Build up Vol 2 Story Begins