Hope of winter and the start of spring. Other symbols of hope include the anchor and the dove. Elpis (Hope) appears in ancient Greek mythology with the story of Zeus and Prometheus. Prometheus stole fire from the god Zeus, which infuriated the supreme god. In turn, Zeus created a box that contained all manners of evil, unbeknownst to the receiver of the box. Pandora opened the box after being warned not to, and unleashed a multitude of harmful spirits that inflicted plagues, diseases, and illnesses on mankind. Spirits of greed, envy, hatred, mistrust, sorrow, anger, revenge, lust, and despair scattered far
The World God Only Knows response, a cute demon from Hell named Elsie appears: a Spirit Hunter. She asks for his cooperation to help her in catching the evil spirits that have escaped to the Human Realm: the "Loose Souls", which were once Old Demons from Hell. These evil spirits hide themselves inside the hearts of girls, feeding off the hosts' negative emotions to replenish their power and strength, thus becoming whole demons once again (and in turn, the host becomes an empty shell of a person). Elsie suggests that the only method to force the evil spirits out is by "conquering" the girls' hearts,