I Want to Be a Receptionist in This Magical World, Vol. 7 (manga)

Let the Walhelnus tournament begin! As mages from all over the world flock to Doran in search of gold and glory, Nunally will be manning the reception desk forHarre. And while she's adapted well to the fast pace and late nights of this job, something strange has been happening...Every time she falls asleep, she's plagued by the same dream of some mysterious entity calling out to her. What could it possibly mean...? And what are Nunally's parents doing investigating an ancient tomb...?