MOON BREATHING QUEEEN, NEZUKO KAMADO

What if, Nezuko Kamado was the only survivor when Muzan attacked her and her family, what if she didn't turn into a demon, ahat if her brother died? What if she knows about demons, Lord Demon Muzan, 12 demon moons, Tsugikuni brothers, Sun and Moon breathing, what if she knows all the breathing styles? But yet, Shes only supposed to use one Breathing style, and that is Moon breathing, shes compatible with it, Shes the queen of Moon Breathing, what if she defeats Kokushibo, Uppermoon one herself using the Moon Breathing created by that demon shes going to kill?