The god's sword(Dropped)

Have you ever thought of obtaining the sword that can give you everything? Is such a thing really exist? If it is, then it could be a dream come true. Zach Wycheng was a poor boy that lives in a worn down cottage with his parents. Zach was considered as the weakest warrior as he got ranked as the only F rank warrior. He had been bullied, discriminated and there was no such a person who wanted to talk to him, even his parents who were very dissapointed. One day, he found a sword in the forest while he had his training. Whose is the sword? Where did it come from?