Reborn in the 1980S, Going Crazy Hunting in the Mountains

Traveling to the mountains + hunting + time travel and rebirth + no system + single female protagonist + backing people to eat mountains + getting rich Accidentally traveled to the 1980s. He is forced to pay debts with usury, is involved in murders, and wants to be the son-in-law of a stupid girl? Can you survive by swallowing your anger? Is it possible to live peacefully by being submissive? Why don't you use your skills? Why don't you go hunting in the mountains if your marksmanship is as good as it is? The poor boy relied on his ancestral hunting notes to make a comeback and turn the mountains into his hunting ground! Taming an eagle and fighting a tiger breaks the killing situation, and traps and traps bury the bully. Murders are solved when wolves are chasing and biting, and enemies are fought when bears are snatching food from their mouths. When everyone thought he was just trying to survive, little did they know that there was something hidden in the yellowed notebook...