Special Forces Soldier from a Humble Family

[Alternate-history transmigration + farming + exile and famine flight + building wealth + civil service exams + martial arts exams + multiple heroines (who appear later)] After catching his fiancée in bed with the village chief's son, retired special forces soldier Gu Qianchen was drowned. By a twist of fate, he transmigrated into the body of a young man in the Great Qian Dynasty who shared his name. At home, the family had nothing, and awful relatives were everywhere. Outside, famine was constant, and barbarians caused trouble at the border. Gu Qianchen sold secret recipes, brewed fruit wine, and opened workshops, leading his whole family to prosperity. He thought this would be a story about a farm boy getting rich, but his exceptional talent for studying made people jealous. They failed to frame him, and he ended up passing the martial arts exams as the top candidate. Gu Qianchen: Ladies, why are you lying on my big bed with your luggage and generous dowries, without telling me?