UQ Holder! manga volume 21 features story and art by Ken Akamatsu.

While Nikits occupies Tota, the Senkyokan comes under attack. Jinbei and Juzo put their relationship to the test as they face off in a fight to the death. Can Jinbei defeat Juzo’s 800 years of sword mastery to awaken his friend from Ba’al’s control? Clashing with the boy he once saved, Jinbei reveals the true nature of his Switcheroo. And, at a climactic moment, Tota arrives just as Dana—his old master—appears out of nowhere. She may no longer be the teacher he once knew…The UQ members must unite to face their greatest battle yet!