After having her heart broken, Harumi volunteers to become a "comfort woman" for the Japanese army, a sexual slave (of sorts) sent to the front line of Manchuria to service the thousands of eager Japanese soldiers stationed in the desolate wastelands fighting the Chinese in World War II. She desires nothing more than to throw herself into the sea of eager male bodies, hoping to ease the pains of her broken heart by the sheer number of sexual encounters alone. But when she arrives and sees the squalid and abusive conditions she is expected to "work" in, she finds despair setting in far faster than she ever expected. This is made worse by the brutish Lieutenant Narita, a high-ranking officer who brutalizes and humiliates Harumi to the exclusion of all other soldiers. Her own delight from such encounters only further aggravates the rage swelling up within her, and she begins to plot his demise eagerly.