"They should have left since they came" In the world of Horsin, a powerful summoning magic appeared onto this world. As it is occurred per centuries to millennia , but this world changed since the last summons start a new era. That same era ended led to this world's ruin. Then one day, another group of people are summoned, and it is more than just living being appeared, a city itself appeared and change parts of the region. As they did their best to find a way to leave this world, they started to change their mind. For the people of Horsin, not all of them agreed.