After Gu Weijun, a mathematics genius at Yenching University, was captured, he was enrolled in the telegraph class of the Japanese Intelligence Department because of his talent in deciphering. He deciphered countless secret messages at gunpoint, each of which could speed up the progress of the war. For the life of his mother and sister, he must hand over the correct answer. For the sake of his compatriots far away, he must hide a mistake in the correct answer.
He saw the intelligence of the attack on Pearl Harbor right under the Japanese army's nose, but could only watch as it was sent to Tokyo. There are only two ways before him: to be a living sinner, or to be a dead hero.
Until the woman named Zhou Nianci appeared in the cafeteria and tapped the rim of the bowl three times with her chopsticks.
