The three sword demon slayer (demon slayer x zoro reader)

Y/n L/n was the boyfriend of nezuko kamado. His dream sense he was a kid was to become the greatest swordsmen in the world but after tragedy strikes he finds a new goal, to kill every last demon for ending his girlfriend and her family. So he becomes a demon slayer and makes his own sword style along with a power that could surpass breathing techniques and before long he became know as DEMON HUNTER Y/N