This is the story of when Tomioka Giyuu's sister loses control over a human hurting her brother ------------- This is a one-shot, spelling and grammar may be incorrect. I do not own the demon slayer anime or magna, I only own my original character and the plot of this story. This is the au I came up with and I would like for no one to steal it. The art in the cover is not mine! Credit to the Artist! -Mio