Monster Hunter: This Is My Revenge

An ordinary hunter with limited talent chose to retire when he was three stars, and moved his family to Yuyun Village. He originally wanted to watch his children grow up and spend the rest of his life with his family, but a hunting accident resulted in the death of his son. "I lost my son in middle age and my last relative in this world. All I have left in my life is revenge. If there is a star to guide my way forward, I hope it is the star of revenge." (Transition of the big sword, the protagonist changes the spear as a weapon in Chapter 7)