On Earth, while Arthur's friend Leaf is dealing with the aftermath of a nuclear strike, a powerful servant of Sunday's forces her to come with him to the House. Sunday intends to use her and Arthur's mother as hostages. When they arrive, the 'Front Door', a room that acts as the entrance of the House, is being overwhelmed by creatures called 'Nithlings', who kill the 'Lieutenant Keeper of the Door', causing the role of Lieutenant Keeper to fall on Leaf, who then cannot be forced to leave the 'Front Door', so the servant goes back to Sunday to report his failure.