During the Republic of China, warlords were divided, wars raged, and various forces fought openly and secretly. Tradition and modernity, Eastern and Western cultures collide and blend fiercely. As a prosperous city, Shanghai is glamorous on the surface, but in fact it is undercurrent; while the small towns in the north are relatively quiet and simple, but they cannot escape the shadow of troubled times. In such an environment, the fate of countless people has been rewritten, and love becomes particularly precious and difficult in the turmoil.