The Human World (人間界 Ningenkai?), or Earth, is the world in which Humans reside within the Devil May Cry series. Unlike the real world, the human world in the series retains many connections to the demon world, allowing for such an abundance of demonic activity that people can make a living as Devil Hunters.
StoryEditThe human and demon realm were once an interconnected world due to the existence hell gates which demons use to pass through two worlds as they wish. After a period of peace, the human world became under attack by hordes of demons led by the Prince of Darkness Mundus. Many were killed since humans were no match as demons boast sheer power, and demons ruled over the human world until Sparda defeated Mundus and his legions single-handedly. In order to close the gateway, Sparda used his own blood, along with the blood of a human priestess, in conjunction with his sword and a mystical amulet. He poured his demonic energy into his beloved sword to close the door between realms, the Temen-ni-gru, though this also robbed him of the lion's share of his abilities. As an added measure, he also imprisoned within the tower its gatekeepers - Cerberus, Agni & Rudra, Nevan, Beowulf and Leviathan - and took the names of the Seven Sins in order to imprison them and set them as seals keeping the Temen-ni-gru underground. 
Role in Devil May CryEdit
The Human World is the domain and home of the humans that exist in their natural state. Earth is synonymous to the term human world. None of the games feature real places, but rather fictional ones that have various real-life influences from modern cities with varying elements like "Mallet Island" which is an island with an old castle, "Dumary Island" which is a European-style village presided over by an immense old clocktower, and "Fortuna" an island that sports distinctive Renaissance architecture, and contains the "Port Caerula", an opera house/cathedral, and a large business district.
Dante's shop Devil May Cry is also located and operates in the human realm. The Human World is a channel to various hell gates like the Temen-ni-gru. Due to the presence of these gatweways, it has been a common theme for the whole series to have ocations that are inhabited by demons or a place where demons are summoned. Lesser ranking demons are often seen residing with human population thus presenting a threat to nearby residents. On the other hand, higher-ranking demons are generally found near hell gates, secluded locations, or within the demon world itself.
- ↑ Devil May Cry 3 manga