Spy Code: the Lost Island

In 1941, Shanghai was an isolated island with surging undercurrents. Mathematics genius Su Yan was originally immersed in the purely academic world, but due to the mysterious death of his father Su Mingzhe, he was suddenly involved in a fatal storm that affected the outcome of the war - the mysterious "key" that all forces were frantically pursuing. Masaichi Yoshida, the gentle and elegant head of Japan's special higher education course, extends an "appreciative" olive branch to him, but behind it lies the deep hatred and cold use of his father. Threatened by the military commander and lured by Wang's puppets, Su Yan, who was isolated and helpless, could only rely on his extraordinary mathematical talent to navigate the cobweb-like conspiracy. Under the leadership of an underground party member codenamed "White Pigeon", he stepped into the dangerous sea of ​​espionage. When the flame of revenge burns reason, and when the truth of the "key" is far beyond imagination, Su Yan plans a decisive move. However, fate plays tricks on people, and the enemy comes a step late because a loved one is critically ill. In the thin line between life and death, can Su Yan use the mathematical principles left behind by his father to crack the ultimate code and save the day? Amidst the explosions that soared into the sky, an even more shocking truth surfaced: the real "key" was never a cold code, but the hot flowing blood and inheritance. This is a peak showdown of wisdom and conspiracy, a legend tempered and grown amidst the hatred of country and family. See how a mathematical genius uses numbers as a blade to cut through the darkness and ignite the dawn in the mysterious island.