Su Manqing, a female doctor who returned from studying abroad, opened a clinic in Shanghai to save lives and heal the wounded, but she met the warlord Gu Yanchen. Gu Yanchen sought medical treatment because his subordinate was injured, and was attracted by Manqing's kindness as a doctor. The current situation was turbulent, and the Japanese army coveted Shanghai. Manqing struggled between saving lives and supporting the anti-Japanese war, while Gu Yanchen fought against the Japanese army to protect her.