少年仲人无意中闯入了绫小路博士的实验室，阴差阳错地启动了博士研究的钢铁天使胡桃，而胡桃也只把仲人视为主人，对他唯命是从，军队为了收回胡桃，先后派了另两位钢铁天使莎奇和佳玲加，但都失败了。原来整件事背后还有一个组织在操控着，而且博士也被他们劫走了，为了找出答案，仲人和胡桃一行人起身前往博士的秘密实验室。During Japan's Taisho Era (1912-1926), a scientist named Ayanokoji developed the Steel Angel-an artificial humanoid with superhuman physical abilities. While the Imperial Army wanted to use the Steel Angel as a new means of modern warfare, Ayanokoji wanted his creation to be a new step in the future of mankind. Thus, he defied orders from the Army and secretly made the Steel Angel codenamed "Kurumi". Then one day, a young boy named Nakahito Kagura snuck into Ayanokoji's house as a dare by his friends and stumbled upon Kurumi's lifeless body. A sudden attack by the Imperial Army shook the house, causing Kurumi to fall on Nakahito. At that moment, their lips met, and Kurumi woke up from "the kiss that started a miracle".
展开