You finish episode 12, sit in it a while, then find this tucked into the second BD box like a thank-you note to the people who actually paid. Knight Busters Inc. is Matoi Sumeragi off the clock, the girl who spent twelve episodes crying that she just wanted a normal life while gods kept hitching rides in her body. It's Tenman Shrine with the pressure off: Yuma Kusanagi, who wanted the sacred slayer job and watched her best friend get drafted instead, Clarus Tonitrus at full volume, Shingo still fumbling at fathering a daughter he only got back three months ago. Nobody puts Inc. in a title when they're planning to break your heart. This never aired because it was never for broadcast, it was for you, the one who stayed through Kamaya's worst nights.

Soushin Shoujo Matoi: Kabushiki Gaisha Knight Busters is a single magical girl special from 2017, a thirteenth episode of Matoi the Sacred Slayer that never aired on television and was instead packaged with the second Blu-ray box set. The main series centers on Matoi Sumeragi, a junior high student who helps out as a shrine maiden at Tenman Shrine in Kamaya and wants nothing more than a quiet, ordinary life, alongside her friend and coworker Yuma Kusanagi, whose family has long carried out exorcisms.