Experiencing his final battle and choosing to succumb to his enemy combatants, Upper Rank One Kokushibo awakens in a place unknown to him. His memory between death and life was hazy, but he knows of only one person who could do something like this. And with that, he seeks the only thing that could potentially set him free from his past: redemption.

CAUTION: If you have not read the Demon Slayer manga and are only watching the anime, please read forward at your own risk as there will be spoilers from the manga not yet discussed in the anime.

All is well within Achievement Hunter headquarters. Michael, Ray, Gavin, Jack, Ryan, and Geoff all barely finish a Let's Play of Minecraft. Once the camera's are turned off and shenanigans begin to ensue, a bright light engulfs the room, transporting them to some unknown and very colorful place.

Before the eyes of the Princesses of Friendship, Crystal Empire, Sun, and Moon appear six large and hairy creatures. Once awakened, they begin asking questions and demanding answers. With their newfound friends of vibrant ponies, the Achievement Hunter crew and the Mane Six must assist the ponies of Equestria to rid them of a darkness that threatens all dimensions and, hopefully, return home.

Rated T for swearing, some blood, depictions of violence, and alcohol consumption.