Everyone in the castle is rallying around the Seven Deadly Sins to fight the demon lord. Everyone wants to take down the wall that's blocking the entrance to the castle so that they can kill the three of the Lords. They're all worried that the curse of the seven sins is still on them, and that they'll have to fight for their lives to save the castle from the evil of the three Lords. Everyone's worried, and they all want to get rid of the wall so they don't have to kill three of them. They want to make sure that the evil demon lord doesn't come back and kill them all. They also want to show the evil lord that they have the power to kill him.