As the first 3D animation in the "Iron fist" series, its production crew is quite gorgeous. It was produced by Digital Frontier, who was in charge of "Iron fist 5", "Iron fist 6" and "biochemical Evil: deterioration", directed by Yuichi Mouri, and scripted by Mr. Sato and Seiji Shinji, produced in digital 3D. In the film, you can see many familiar characters consistent with the setting style of "Iron fist 6", including Ling Xiaoyu, Fengjianren, Nina, Mishima 18, Alyssa, Anna, Panda, and the mysterious high school student Kamijin, whose identity is unknown. as well as the transformation of the iron fist crowd of the main force of the Mishima chaebol and Fengjian Jen into demons, launching a bold fight full of dramatic tension. The protagonist of Iron fist: revenge of Blood is Ling Xiaoyu, a female high school student who is proficient in Chinese boxing. As a result of a special commission, Ling Xiaoyu sneaked into the international school in Kyoto, Japan, and launched an investigation on a teenager named Shen Guzhen. Subsequently, Ling Xiaoyu discovered the secret hidden behind the "three islands consortium".