A day off... After spending so long training, Reno has forgotten what he's supposed to do with free time. But when he sees that Hoshina is up to something, he goes on a mission to tail him with Iharu!

It's Specials of Kamitsubaki City Under Construction. Episode 0. Seven years after humanity was devastated by a major disaster, a beacon of science and prosperity rises in Kamitsubaki City. But lurking in its shadows are Tesseractor, monsters born from human darkness. Only the Witchling, five girls with voices that wield magic, stand against them. With every note, they fight, not just to protect the peace of the city, but to heal a broken world.

The seventh recap special of the Egghead arc.

Specials included with the DVD release of the second season of bundled with volume 8.1 of the manga.