In Yanbei in 1940, various forces were mixed.
Gu Shuqing, who had just returned from studying abroad and was ignorant of worldly affairs, was planning to inherit the family business, but after repeated experiences, she was determined to contribute to the Anti-Japanese War, joined the military command, and became the chief of the Translation and Electronics Section with her outstanding mathematical ability and memory.
Unexpectedly, the headquarters to which she belonged suddenly defected to the Japanese army. Gu Shuqing was also suspected of being a spy during the suppression operation, and thus embarked on the ship that affected her life.
In each game, she is getting closer and closer to the truth.
A sea, a ship, what is the truth?
Those unforgettable experiences will forever be imprinted on her pulse...
Concept: Gu Shuqing's growth process