Some of the items listed in the PV are references to other works by mothy: The Pot of Bazusu is from the Torture Tower Doesn't Sleep series, the Gold-Plated Key is a reference to Unlock City, the Infinity Mirrors of the Messengers are a reference to the song Messengers of the Infinity Mirrors, and the Steel Heart is a reference to The Steel Lady, Rilia-Renée.
In addition, the Hamel Flute's name is a reference to the Pied Piper of Hamelin and The Gear of Deus is a reference to the concept Deus ex machina.
The characters featured in the credits are named after French foods and beverages.