In Toragay, Elphegort, Margarita Blankenheim asks for someone to take her gift to sleep for the sake of their "happiness". She then speaks of how, even though her philandering husband, Kaspar, married her as part of an arranged engagement for her father's money and has forgotten their childhood promise, she still loves him and is alright with just being by his side. Claiming to be unable to handle seeing him always so weary, Margarita decides to give to him the "medicine" she learned to make from her friend Julia Abelard as a present, claiming it will help him sleep well.
She then regards how everyone in the city also has worries and so she gives her "medicine" to everyone to grant them repose. It's then revealed that Margarita actually poisoned everyone in the city; as the only one left, she has acquired the freedom and wealth she desired. Reiterating her wish to see her husband sleep with her poison, she states how she had been broken from being used like a doll and so wished to destroy everything.
She then says that now it's her turn to take her wonderful "medicine" and consumes her Gift, going from being the "Sleep Princess" to finally becoming the "Sleeping Princess". At the end of the PV, a dialogue between Elluka Clockworker and Gumillia is shown, resolving to head to Lucifenia to pursue Julia Abelard and take a closer look at Père Noël.
1. Present, something donated; charity
2. A special ability; a talent from birth
3. ((British colloquial)) A cheap item; a task that’s easy to do
~E.C. 609 Toragay city, Elphegort~
With her marriage to Marquis Blankenheim
Reality is thrust upon her.
Margarita was troubled.
From her friend Julia she was instructed
On the means to refine the medicine of tranquility, “gift”.
She hands over the “gift” to her husband.
“It’s a medicine that’ll help you sleep well”, she said…
///rquis Blankenheim, Dead///
Dr. Felix, in Critical Conditi///
24 Passed Away at the ///stitute. Cause///
No End to ///ragay’s Turmoil Over its Strange Disease in///
///hind the Scenes, the Shadow of Criminal Organization “Pere Noel”?
///the Elphegort Government, Will the Freezis/// Dispatch an Inquiry?
///tween Toragay and Aceid Prohibited///
///Freezis Foundation To Deploy an Inquiry to Toragay.
///ay, in a State of Ruin///
1. Toxin, poison, powerful medicine
Toragay was reduced to a ghost town.
Margarita had already become a sadistic murderer and perished.
Was it due to her circumstances,
Or brainwashing from that woman…?
Due to Margarita’s suicide,
The truth has fallen into darkness…
“…Such terrible circumstances.”
“Sorry to keep you waiting.”
“You’ve done well. So, how was it?”
“Right, well, it seems as though the vessel has already been taken away…”
“Furthermore, as I thought this matter appears to be linked to that woman… Julia.”
“Pere Noel…It looks like we’ll need to investigate deeper, huh?”
The English word gift means "present", and is subtitled in the early song lyrics with the kanji for "gift" and "medicine"; the German word Gift means "poison" and is subtitled as such during the latter half of the song.
The song PV plays with this, showing the word's English dictionary definition before the song begins and later showing the word's German dictionary definition towards the song's end; fittingly, Elphegort, the song's setting, is inspired by Germany.
Similarly, the word used for "put to sleep" (眠らせ) also means "kill", alluding to the double nature of Margarita's gift.
The song's English title, "Belphegor's gift", is a reference to Belphegor, the patron demon of Sloth, and the aforementioned wordplay of the word "gift".
Later in the booklet, Gammon Octo comments about Julia's involvement in Margarita's spring of murders and her connection to the Clockworker's Doll; based on this, he hypothesizes that Margarita was a deliberately-spawned incarnation of a demon.
Throughout most of the song, bubbling sounds of Gift can be heard in the background.