|Hair Color||Black with red strands in front|
|Affiliation|| Malebranche (formerly) |
|Relatives||Nord Justina (Guardian)|
|Novel Debut||Volume 6|
Iron (イルオーン Iruōn) Is the personification of the Gevurah Sephiroth and currently under the protection of Emi's father Nord Justina. He is 'the essence of judgment and limitation, and corresponds to awe and the element of fire. He is associated with the color red.
Iron came to Japan together with the demon Farfarello in order to search for the Demon King and convince him to return to Ente Isla and continue his conquest. After the man himself rejected Farfarello's request, Emi, Suzuno and Sariel arrived on the scene. The hero attacked Farfalerro, threatening him to return to Ente Isla. In responce the demon commanded Iron to attack. He beat Suzuno easily and overwhelmed Emi, until Alas=Ramus sensed the boy's presence and returned to Emi's body. Caught off guard by the girl's presence Iron kept some distance from them and got hit by Sariel's Evil Eye of the Fallen. He was forced to retreat with Farfarello, who promised to return again.
Iron appeared again before Maou when the Demon king was attending a MgRonalds Barista lecture. He interrogated Maou about his goals in Japan.
Later, Iron took Chiho to Farfarello for questioning about Maou's plans, he was most of the time listening. Commenting only once in a while when Maou came to convince Farfarello to return to the Demon World with Iron and for the Demon's to retreat from the Eastern Continent.
Before Iron returned to Ente Isla, he said good-bye to Alas=Ramus and promised to play with her again next time.
Iron first appeared, wearing an red armor which looked like it originated from 200 years ago, created from demonic energy and his face covered by a demon mask.
After Farfarello absorbed the demonic energy to return to his demon form, Iron was revealed to look like a 9-year old boy with black hair and a red strand in his bangs, similar to Alas=Ramus' and Acies=Ara's silver, purple hair. This is probably common with personified Sephira.
During his stay in Japan later, he is seen wear regular clothes, a shirt, pants and a blazer.