No sooner have Seiya and his friends made it back from Dragon Village than it's time for them to face a new enemy-- the Demon Lord's army's Aerial Assault Flies! These absurdly fast-flying monsters might be the most dangerous foes they have faced yet--and to make matters worse, the beautiful but hot-headed Rosalie, captain of the Roseguard Imperial Knights, is raring to charge in without a plan. Can Seiya squash these bugs before this underpowered but overly reckless knight gets herself killed?!