Mountains and Rivers Are Angry

He is a little beggar who is oppressed by others. He joins the master by chance, but is treated like a pig or a dog. Even the magic weapon rewarded by the master was found in the garbage mountain. However, no one expected that the magic weapon, which they regarded as nothing more than trash, would bring a turn to the little beggar's fate... Please see how he uses this rubbish magic weapon to reach the top step by step...