[Strong Female Lead, Transmigration, Farming]
Ye Aman, a botanist with a doctorate, opens her eyes to find herself transmigrated into the abandoned wife of the Helan tribe in the Great Yan Dynasty. Her former husband Batu threw her into a death valley at -20°C because she “couldn't bear children.” Her only companion is Huiya, a stray wolf who can find water and fend off wild beasts. On the brink of death, she finds the five jin of detoxified potato seeds she brought with her when she transmigrated. Drawing on modern knowledge, she gathers manure for compost and turns the soil with a wooden plow, growing the first crop of potatoes against all odds.
Along the way, she rescues Murong Jin, a hostage prince of Southern Chu who has fainted from the cold. The two form an alliance over “potato cultivation”: he helps find tools and plan the furrows, while she gathers intelligence on the tribes. As the potatoes flourish, they attract elderly and infirm refugees who have been cast aside. Together, they establish a new tribe where “each receives according to their labor,” rejecting male supremacy. But Batu comes with his men to seize their food. Ye Aman has Huiya ambush the horsemen, while the refugees drive the attackers back by hurling potatoes, greatly strengthening the tribe's unity.
When salt runs short, the two lead a small team into Wolf Valley to find a salt spring. During a blizzard, they huddle together in a cave to keep warm, and Murong Jin shields her from falling ice. Their feelings deepen, and he confesses that he is a prince. Batu joins forces with the Blackwind tribe to wipe them out. Ye Aman strikes back with “potato landmines,” and Murong Jin is wounded by a blade while protecting her. In the end, they capture the enemy leader. When elders accuse her of using “demonic arts,” she proves her methods with a manual on gunpowder, and the refugees hail her as the female leader of the Potato Tribe.
Murong Jin must return home to claim the throne amid turmoil in Southern Chu. Ye Aman escorts him with an elite force and Huiya, laying potato traps to repel the empress's assassins. After helping him ascend the throne, the two host a “Potato Feast” to bring the nations together and forge an alliance: Southern Chu supplies farming tools, while the tribe shares its techniques. Ye Aman becomes both a female tribal leader and the Princess Consort of Chu, carving out a double legend with potatoes amid a chaotic age.