My gate connects the past and present: the general reveres me as a deity

Yuan Ying is a struggling actress in modern times who faces professional setbacks and personal betrayal. After her boyfriend cheats on her and her agency mistreats her, she retreats to her remote hometown. During a night walk, she encounters a blinding light that scares away an invading army attacking an ancient fortress. Unaware that she is the source of the light, she is shocked when a wounded general named Si Hongjing appears in her home through a mysterious door. Si Hongjing is the commander of Dongping Pass, the last line of defense for the Great Qian Dynasty against the Jin Kingdom. His soldiers are starving, under-equipped, and suffering from wound infections due to a lack of supplies from the corrupt court.

Yuan Ying realizes she can help by providing modern medicine and food. She purchases antibiotics, painkillers, and bulk provisions, which Si Hongjing transports back to his camp. The miraculous medicines save countless lives and boost the morale of the Daqian soldiers, who begin to view Yuan Ying as a divine immortal. Si Hongjing, initially guarded, grows to trust and respect Yuan Ying. He reveals that he is a prince branded as an ill-fated star by the imperial astronomers, a label used to marginalize him. Despite knowing that history records his dynasty falling and himself being labeled a traitor, he remains dedicated to protecting his people and his country.

As the Jin forces prepare a major assault, Yuan Ying and Si Hongjing develop a strategic partnership. She provides him with modern tools, including a loudspeaker, which he uses to psychologically warfare the enemy, causing the Jin general to retreat in fear. Their bond deepens as they share personal struggles. Yuan Ying helps Si Hongjing cope with the betrayal of his former friend, Xu Jing, who defected to the enemy. Si Hongjing confronts Xu Jing, who claims the Great Qian court is unworthy of loyalty. The confrontation reveals deeper political conspiracies within the capital, suggesting that the lack of supplies was intentional sabotage.

Yuan Ying discovers that the door between their worlds opens at specific times and locations. She begins visiting the ancient era herself to observe and learn, though she hides her presence from Si Hongjing initially. During one visit, she witnesses locals insulting Si Hongjing based on the rumors of his cursed fate. She defends him, and later, Si Hongjing learns of her identity through Deputy General Guo. The revelation strengthens their connection, as Si Hongjing realizes Yuan Ying is the divine figure who has changed the fate of his army.

The story reaches a critical point when natural disasters threaten the region. Heavy rains flood the countryside, endangering the local villagers who rely on agriculture. Yuan Ying uses her resources to buy up the villagers' damaged crops, providing them with much-needed income. Simultaneously, Si Hongjing faces increasing pressure from internal enemies within the Great Qian court who seek to undermine his command. The narrative sets the stage for a larger conflict where Si Hongjing must not only defend the border but also navigate the treacherous politics of the capital, with Yuan Ying's modern knowledge and support serving as his crucial advantage.

The relationship between the two protagonists evolves from mutual gratitude to deep emotional reliance. Si Hongjing finds in Yuan Ying the acceptance and understanding he has never experienced, while Yuan Ying finds purpose and inspiration in Si Hongjing's integrity and courage. Her acting skills improve as she immerses herself in the historical context and observes Si Hongjing's demeanor. The story highlights the contrast between the brutal, superstitious past and the progressive, peaceful modern era, emphasizing themes of destiny, loyalty, and the power of human connection across time.

As the Jin Kingdom regroups for another attack, Si Hongjing prepares his troops with the supplies and strategies provided by Yuan Ying. The impending battle poses a significant threat, not just militarily but politically, as factions within the Great Qian court may use the war's outcome to further their own agendas. Si Hongjing's determination to hold Dongping Pass at all costs becomes a test of his loyalty and a challenge to the historical narrative that brands him a traitor. Yuan Ying stands by him, ready to face whatever consequences arise from their actions in the past.

The narrative concludes with the two protagonists solidifying their alliance. Si Hongjing promises to take Yuan Ying on a tour of the Great Qian once the war is won, a gesture that symbolizes his hope for a future beyond the current turmoil. Yuan Ying, in turn, commits to continuing her support, recognizing that her actions have real consequences for the people of the past. The story leaves the outcome of the war and the fate of the Great Qian Dynasty uncertain, setting up a continuation where the protagonists must confront both external enemies and internal betrayals to alter the course of history.