Modern-day orphan siblings Lin Ch Nuan and Lin Yanjun are involved in a car accident and travel to the Great Yu Dynasty's Qianniu Village, bringing along a mysterious mustard-seed space. Facing their harsh and greedy relatives in the old family home, the siblings fight to separate from the family and become self-reliant. Equipped with modern supplies and a cultivation cheat, they unlock a spirit artifact, a spiritual spring, and vast resources. Together with their mother, younger siblings, and relatives from the eldest branch of the family, they reclaim wasteland, build a home, and grow stronger through cultivation. By chance, they rescue a group of loyal ministers, including a General Who Guards the Nation, who have been persecuted by the imperial family, drawing them into courtly power struggles. While protecting their family's peaceful life, they navigate political intrigue and embark on an adventure of farming, stockpiling supplies, cultivating their powers, and protecting their loved ones.