Monster hunter: Why is there a greatsword in my house?

100 years ago monsters appeared all over the world nobody knew where they came from but they all had something in common they destroyed everything in their path minerals plants and new bugs appeared, after 5 years of continuous fight with the monsters humans began to learn how to kill them they took advantage of their resources to try to create firearms to fight them but they did not work and every year that passed the firearms that already existed stopped working after the 5th year they stopped working completely and that is why they looked for other ways to fight them they created 7 weapons which were great sword, long sword, hammer, sword and shield, bow and heavy and light crossbows With those 7 weapons, the foundations were created for what years later would be known as the Age of Hunters, and at the very height of the age, a child descended from the first murderer of the elderly was born. ————————————————— The cover image is not mine, I got it from Pinterest. This is the link to the image, creator of the image. If you mind if I use it, you can talk to me and I'll change it. just remove the space to be able to enter the link https:// pin.it/6lnWYxwPj