Dear friends, let me tell you a story about the tales of Miitopia, a world filled with beings known as Mii's This is the world of Miitopia. It is a world where every Mii can live in peace and harmony. Or at least…it was. The darkness came without warning… A great and terrible shadow threatening all of Miitopia! An unspeakably evil fiend started stealing everyone's faces! And then, to add insult to injury… the fiend gave the faces to monsters! Miitopia could have plunged into eternal darkness if it weren't for the heroes.

These twelve strong and heroics have kept peace across Miitopia having to use a seal to trap the evil hoping it will never been seen again 100 years later the heroes have died and the dark lord's spirit has deceased and there was nothing but peace, until now at least…