In the late autumn of 1943 in Shanghai, the chill had quietly climbed onto the branches of the sycamore trees in the French Concession, but inside the "Sakura Blossom" club in Hongkou, there was a false warmth. The crystal chandelier reflects dazzling light, and the champagne tower flows with golden temptation. Japanese military officers, Wang puppet dignitaries, envoys from various countries, and well-dressed courtesans dance to the melodious music, creating a abnormally prosperous picture of the occupied area.