Chapter 212, "Preparations (Part 1)", is the clearest early answer because it turns Preparations's situation into a concrete plot event.
Chapter 501, "Last Preparations (Part 1)", is the clearest early answer because it turns Last Preparations's situation into a concrete plot event.
Chapter 213, "Preparations (Part 2)", is the clearest early answer because it turns Gaea Supermarket's situation into a concrete plot event.
Chapter 502, "Last Preparations (Part 2)", is the clearest early answer because it turns Altera's situation into a concrete plot event.
Chapter 752, "Training, Preparations and Plans 4.", is the clearest early answer because it turns Tier's situation into a concrete plot event.
Chapter 751, "Training, Preparations and Plans 3.", is the clearest early answer because it turns Alec's situation into a concrete plot event.
Chapter 750, "Training, Preparations and Plans 2.", is the clearest early answer because it turns Alec's situation into a concrete plot event.
Chapter 749, "Training, Preparations and Plans 1", is the clearest early answer because it turns Tier's situation into a concrete plot event.
Chapter 764, "Final Clearing", is the clearest early answer because it turns Alterra's situation into a concrete plot event.
Chapter 423, "Final Mission (4).", is the clearest early answer because it turns Ghouls's situation into a concrete plot event.