The Ideal Sponger Life Vol. 15 (manga)

After navigating the succession dispute within the Twin Kingdoms, Zenjiro's visit home is unfortunately short-lived. He swiftly returns abroad with a gift from Queen Aura to Prince Francesco—marbles which carry incredible value in the arts of enchantment. Speaking with the man, he learns of a new revelation that could change the fate of the entire world! Not long after, Princess Freya visits the Kingdoms to request a magical item of her own. What could a northern princess from the realm of technology and progress want from the enchanters of Sharou?