The Institute’s festival begins! But a mysterious visitor also appears... Having eliminated the strongest Fiend, the Devourer, what awaits Alus when he returns is the Institute’s festival! The Institute is in the midst of these festivities when Alus finds himself bewildered by a visit from a mysterious younger student, Noir, and also gets dragged into a pseudo-date with Felinella. To complicate matters even more, a fearsome intruder shows up at the festival’s signature mock battles, and the situation immediately turns dangerous.

The deadliest Fiend versus the strongest Magicmaster! What is this collision that shakes the whole world? Deep in the Outer World, the most ferocious enemy appears... the Devourer! Alus and Lettie face down the fierce darkness that devoured the army of the nation of Balmes, only to have it turn its fangs on them! While the two go up against humanity’s greatest threat, Loki thinks of Alus on the battleground, and faces a challenge of her own. Find out what happens next in the latest volume of The Greatest Magicmaster’s Retirement Plan!

On the night before the Friendship Magical Tournament, Alus receives another mission. Peaceful times for Alus and his friends come to an end, as Tesfia is forced to consider an engagement. Meanwhile, Alus has to face off against a strange attacker that suddenly appears at the Institute. At a conference of the rulers of the seven nations, even Alpha’s beautiful ruler, Cicelnia, approaches Alus. When Alus is suddenly appointed to guard Cicelnia, he meets the other nations’ rulers and the Single Digits that guard them. An uneasy atmosphere pervades the conference, as the nations vie for power. With the Friendship Magical Tournament looming on the horizon—trouble stirs!