Above the Abyss: Sharp Edge

National Security agent Shen Tongzhou is transported to 1936 Shanghai, where he infiltrates the Military Statistics Bureau under multiple identities while secretly serving as a Communist "nail." He assassinates Japanese princes twice, in Nanjing and Shanghai, and engages in desperate struggles with Japanese spies Takano Akira and Aoki Rieko. His wife A-Lian sacrifices herself taking a blade for him; he changes his face and name, from "Fang Muyun" to "Mr. Su," and never stops. Single-handedly stirring up storms behind enemy lines, he becomes a banner of the whole nation's resistance and a nightmare for the enemy. — Description from novelcodex.orgFull novel: Above the Abyss: Sharp Edge — read the rest free on N​o⁠v​e⁠l​C⁠o​d⁠e​x⁠.​o⁠r​g⁠