Horizon

Horizon (ホライズン) is a city in the Central Continent where the story usually took place. It was once ruled by Edgar Fromware and his father until they were overthrown by Rein Shroud, his companions and the soon-to-be knight captain Stella Enplace.

After Edgar's defeat, the Hero's Party has been banished forever by Horizon's citizens (who refused to provide provisions for them) because the Party refused to help of defeating the demonic Edgar and deeming Arios and his teammates to be cowards when they believe they would defeat the Demon Lord. Horizon now idolized The Shrouds as their heroes and given Rein Shroud and his companions any source of provision they've wanted even given Rein and his companions any items for free after Rein and his companions took down the demonic Edgar.

Demon attack
During the assault, Edgar unable to deal with the fact that he will lose everything, ring consumes him, turning him into a demon.

Hero Party Banishment
After the defeat of Edgar and his father, The Hero Party attempted to provide provision for their journey against the Demon Lord. However, the angry citizens refused to give them any food when the Heroes refused to fight the Demonic Edgar for allowing the destruction upon the Horizon's city. The Hero Party has been officially banished from Horizon by its habitants (who are now idolizing Rein Shroud and his companions as their heroes) and the Hero Party were force to take their exile from Horizon without any provisions and they will never coming back to Horizon ever again, causing Arios to increase his hatred towards Rein.

Trivia

 * Rein is the local hero, but not the Hero; he turned it down.
 * Horizon has a literal protective Shroud.
 * Thanks to The Shrouds, the corruption in Horizon's leadership and law enforcement has been eliminated; plus crime is unlikely to happen, due to the fact Rein is all but invincible thanks to his contractuals, and the fact the girls are Ultimate Species.