Rebirth in 1980, the Doting Sister-In-Law of the Hunter King

[(Anyone who adds a bookshelf will become rich) Pure period novel + spoiled sister-in-law + single female protagonist + hunting in the Northeast + explosive updates + hunting + digging for medicine + deep mountain stronghold + farming novel) Patrolling the mountains and walking the dog, riding horses and drinking wine, I reopened my rotten life in 1980. But when I opened my eyes, what was waiting for me in the dilapidated house was my strong sister-in-law who called me "brother-in-law" and my niece who died tragically. In my previous life, I was a bastard and caused them to die miserably in the mountains; in this life, I tighten my shotgun and stare at the Daxingan Mountains—— "I am the king and hunting king of Daxinganling!" This time I want to conquer Daxinganling while pampering my sister-in-law into the most envied woman in the village...