The Lucky Star Fake Eldest Daughter of the 1970s: Marrying a Military Officer and Being Pampered

Luo Jiaojiao is an eighteen-year-old woman who discovers on her wedding day that she is not the biological daughter of the Luo family, having been switched at birth with Luo Meihui eighteen years prior. Her biological parents, a soldier and a military doctor, died saving Luo Meihui from a river accident caused by her birth mother. The Luo family, who raised Jiaojiao with the intent of using her beauty to marry into a wealthy family for social climbing, now reject her upon Meihui's return. Accused of maliciously pushing Meihui into the water and stealing from the family, Jiaojiao is publicly humiliated and abandoned by her adoptive parents, who refuse to believe her innocence.

Leng Mohan, a regiment-level commander and the man Jiaojiao is forced to marry, arrives to collect her. Unlike the Luo family, Leng Mohan understands the truth: Jiaojiao is an innocent victim of a tragedy orchestrated by Meihui's birth mother. He protects Jiaojiao from the hostile crowd and the manipulative accusations of her adoptive sister, Du Fei. When Jiaojiao reveals that Meihui stole her life savings, two young boys witness the theft and confirm Jiaojiao's innocence. The Luo family is exposed, but Leng Mohan refuses their money and forces them to sign a legal agreement severing all ties with Jiaojiao, ensuring she leaves with nothing but her dignity and his protection.

As they travel to Leng Mohan's military base, the couple begins to navigate their new relationship. Jiaojiao, naive and sheltered, is deeply moved by Leng Mohan's unexpected kindness. He buys her clothes, takes her to a fine restaurant, and explains his past hardships, which brings her to tears. She vows to be a good wife and bear him children, though Leng Mohan gently corrects her, stating he cares only for her well-being and plans to wait a few years before starting a family. Their bond strengthens as Leng Mohan reveals details about Jiaojiao's biological family, including her sickly cousin Luo Xingchen, who is the only relative she has left besides him.

At the military base, tensions arise with Zhou Wenwen, a beautiful woman from the art troupe who has harbored a secret crush on Leng Mohan for three years. Zhou Wenwen attempts to assert her presence by riding in the passenger seat of Leng Mohan's car, a move that causes Jiaojiao significant distress. Leng Mohan, however, clarifies that he placed Jiaojiao in the back seat for safety reasons, as the passenger seat is the most dangerous in a vehicle. He reassures Jiaojiao that she is his only wife and that his relationship with Zhou Wenwen is nonexistent. The soldiers at the base are shocked by Leng Mohan's devotion to his new wife, contrasting sharply with his previously cold and isolated reputation.

Jiaojiao struggles with insecurity, fearing she is not enough compared to Zhou Wenwen's status and beauty. Leng Mohan addresses her fears directly, promising to handle any rumors and protect her reputation. He takes her to their small quarters, explaining that they will soon move into a larger approved house. Despite the modest living conditions, Jiaojiao feels a sense of peace and safety she has never known. The story establishes a dynamic where Leng Mohan, though outwardly stern, is deeply protective and attentive, while Jiaojiao learns to trust him and embrace her new life, leaving behind the abuse and manipulation of her adoptive family.