muichiros past?

Intro so your muichiro so you and the other hashiras + kagaya, rengoku, tanjiro and genya then a video of your past comes up and everyone looks at it btw you didnt know your past because you forgot but your past: your mother died from a illness when uou was 11 and your father died searching for it (i dont know how he died while searching tho) but one night a demon (the woodland demon) went into your house you and yuichiro was there (yuichiro was your twin) you was about to get attacked even kill but yuichiro woke up and jumped in the way blood splattered and his arm flung of after that you killed the demon by trapping it and it burned in the sun the end :D