Cursed Sword

my oc story about a boy that finds a cursed blade, the sword I am writing about is not real, however, the 2 swords that inspired it are, it took the location of one sword, the Honjō Masamune, and changed its name and story to that of The Story of the Cursed Samurai Muramasa Blades. The story is based in LA but it will have buildings that don't exist, that said I think this will be a good story, I am posting it here to get dead back on how to improve it. I hope that if you read this story that you enjoy it, but don't hesitate to tall me how to make it better.