The Sorcerer's Receptionist: Volume 3 by Mako

After the Orcinus Operation, life has calmed down for Nanalie. Beginning her second year as a “Receptionist Lady” with a new receptionist to help train, she has more duties than ever! But, capable as she is, she’s taking it all in stride. While both the identity of the demon that attacked the palace and the name it uttered—“Städel”—are still mysteries, life goes on. From every kingdom on the continent, mages of all different magic types are gathering to compete in the Wall Helenus, a massive magical tournament. In the midst of preparations for the tournament, however, Rockmann warns Nanalie that demons are “after her Ice-type blood”!? On top of that, it seems that there is a special reason why Nanalie just can’t seem to get Rockmann out of her life... The story of this optimistic young woman working and living in a fantasy world finally comes to a climax!