Mana Exhaustion

Eiro led the Stag back into the castle's interior and quickly brought him up the stairs to Solomon's private study.

"Y-You can't truly believe that this dumb animal managed to remember you, right? There is no way that it did." The Ghost following Eiro pointed out, trying to get the Demon to form that deal with him, and Eiro thought about it for just a moment, "No, I do believe it. Right, Lugo?" Eiro said with a smug grin as he looked straight at the stag, at which point someone else joined the conversation about something that had bothered him for a while.