Two Breathing-Style Master (Male reader x Demon Slayer) Hiatus

Y/N Kuno is from a family of Demon slayers with a strange breathing style known as Void breathing. However when he took on a second nichirin blade, instead of being the normal dark purple like his other sword, it turned yellow, the color of a thunder breather. And so Y/N became a master of two breathing styles, until a tragic accident occurred and he lost his ability to do dual wield his swords. However fate desired that he hadn't had enough torment and took what little he had left.