Boruto x Demon Slayer!

Boruto Uzumaki leaves his home to sell charcoal one afternoon and comes back home to a massacre his sister the only he thinks is breathing he runs to town trying to save but Unfortunately its to late and She turns into a Demon (Boruto x Harem) *P.S. Chakra and breathings are mixed together in this AU The Breathing styles are visible because i think i would be cool for chakra to react with Ninchirin making the Elements Visible with some weird magic shit i guess*