Kiyo is a female school student in Saga Prefecture, Japan. She admires nurses and wants to be helpful to her nation. Kiyo decides to become a war nurse. She undergoes strict training and finally graduates from nursing school. Kiyo then gets her draft notice and leaves for Manchuria, China.

Everyday, she takes care of injured soldiers. A Japanese immigrant in Manchuria, Wataru, brings two injured people to her. One person is Hikaru d the other injured person is a native Chinese person named Son. Kiyo persuades Army Surgeon Hideyo  to treat Son and he does so in secret. Lieutenant Colonel Kisuke soon discovers about the treatment.