This book is a full-length novel. The book tells the story of Taiwanese youth Li Daoyuan, who received the "Imperial People" ideological education under Japanese colonial rule since childhood, and he became confused about his identity. As he grew older and more experienced, especially after receiving the enlightenment of communist ideas, he stepped out of this psychological shadow and consciously connected the fate of the Taiwanese people with the anti-Japanese struggle on the mainland. He transformed into a mature red intelligence agent and made outstanding contributions until he gave up his precious life.