Labyrinth of Refrain: Coven of Dusk - Puppet Show Trailer

NIS America has posted a new trailer for Labyrinth of Refrain: Coven of Dusk, showing a puppet show telling a tale of two boys and a demon. The trailer does not show gameplay or the characters previously introduced for this dungeon crawler, so how this little tale relates to the Labyrinth of Refrain is certain to be a mystery waiting to be resolved.

Find the trailer below.

As the curtain rises, we see two brothers who were slaves to a horrific, demented monster. They worked day and night in hideous conditions. The demon, a cursed monster, would torture the brothers to satiate his twisted desires. However, one day, having had enough of this injustice, the brothers attempt to escape their bane. As soon as they step out of bounds, the demon captures and tortures them even more, and horrific cries could be heard everywhere... 

What happened to the brothers? What connection do they have to the labyrinth beneath Refrain? And what became of the demon?