A Merc. Room License allows you to store a mercenary with all of its equipment in a Mercenary Room. You can store Legion Mercenaries in a Mercenary Room, but you can also get free Legion Storage for Legion Mercenaries. * Can use 1 slot from the Mercenary Room. * Can only be activated when your Main Character is not in battle. * If a player is already using an Merc. Room License, the existing license's expiration date will be extended for the duration of the new license (it does not start over at 0). * Check the Buffs window for remaining days and time on this license.