Lin Wan, a genius engineer from the 21st century, transmigrates in an explosion and becomes a pawn in an interstellar marriage alliance, sent to the five-star admiral Gu Jinyuan, whose mental power is on the verge of going berserk. Their contract states that they are husband and wife in name only, and that she is actually his technical consultant.
She signs her name, then heads straight for his battered mech, Annihilation, and points out its fatal flaw. Gu Jinyuan discovers that this contract wife from a backward planet has stars in her eyes, along with a calmness he has never seen before.
When the Zerg swarm bears down and he is gravely wounded, hovering between life and death, Lin Wan steps into the flames of war. She dismantles the mothership's core with her bare hands, then spends three days and three nights completely rebuilding Annihilation. When the mech kneels and lowers its hatch for her, the entire galaxy finally realizes that she is the heir to a lost civilization.
Later, in the dead of night, Gu Jinyuan tears up the contract and pins her against the mech's hatch. "The contract has expired. Now, I want to trade the rest of my life for an agreement that never ends."
Holding her genius adopted son, who has just hacked into the Federation's System, she raises an eyebrow and smiles. "All right. But next time you head into battle, remember to bring the whole family."
After crossing countless light-years, she swears herself to him with steel and code, becoming the sole point of reference in his chaotic life. Together, they embark on an eternal expedition in the name of love.
