Spoilers below! I’ll include links to everything but I’m only going to copy and paste the machine translations (sorry… I’m lazy) of the parts that talk about the actual CD content.
I’ll try to edit (in red text) wherever I think is absolutely necessary or needs context, but certain things I’ll leave them as is (even if weirdly phrased) because I don’t want to mess with the interpretations more than the machine translation already has. (skip) = text was cut to keep things relevant.
Also, because of how Japanese tends to drop pronouns and instead rely on context, the translations refer to the MC by he/him by default, but from what I’ve read the audio doesn’t actually make any distinction as to the MC’s gender. It’s for anyone.
To give a quick synopsis, Belial appears in the captain's bedroom at night (I'm not sure if it's night, but at least it's pitch black outside).
He tells him that the apple in the apple pie the captain ate during the day was poisoned and that he's come because he needs an antidote.
To antidote, he needs a kiss from his "beloved," just like in a fairy tale. That's why the Commander needs Belial to love him as he administers the detox.
... under the pretext (although in reality, it's enough if he just relaxes), Belial whispers sweetly, breathes into his ear, touches his chest and fingers, massages him, teases his ears with his fluffy feathers, uses the base of his feathers to clean his ears deeply while he rests his head on his lap, and kisses him in places other than his lips.
Finally, Belial purposely lets it slip that the apple pie the Commander ate is from the shop where Belial was disguised as a seller.
And that's how it goes.
(skip)
And this is an important point, but Belial pulls out his "black, fluffy feathers" and uses them to tease his ears...to clean them.
The poster talks a lot about Lucilius in the second half of their post, but the machine translation translated フル (feru) as fur, so I edited that.
Black, fluffy feathers...In the past, "black, fluffy feathers" have appeared in connection with Belial several times and people have said that they were "Feru’s feathers," but I can't imagine Feru’s feathers being used to clean the leader's ears, so I think they must be Belial's own.
(skip)
The beautiful voice that perfectly coats the arrogance and malice in this body pillow CD with sweetness and seductiveness is completely different from the sweet voice that gently and softly calls "Feru-san" on the character selection screen in GBVSR... (By the way, the voice in the English version of Belial calling out "Cilius" is sticky and sweet. It sounds like he's been given restraining orders from the court about 100 times.)
This is where the part that talks specifically about the CD content ends, but if you have time and can read Japanese or are willing to put up with machine translation, I think the rest of their post is a fun read. They’re very clearly a BeliFaa (idk ship names so don’t come for me) shipper so they talk a lot about how Belial uses the MC’s connection/relationship to Lucilius as an axis on which to base his interactions with the MC in GBFVSR, the CD, and the VR experience.
Assuming Japanese isn’t their first language because they mention translating, but this is still written in Japanese
He starts talking about how the apple pie the protagonist bought at lunch was poisoned, and that it started to take effect at night (loose translation)
⇒ To counteract the poison, a kiss (!?) from a loved one is necessary
Believe that he will "serve you like a maid" so that the protagonist will accept him and love him? (I don't know how to express this), and Belial starts talking to the protagonist. At this point, I think Belial is straddling the protagonist's body and talking to him
⇒
Belial does whatever he wants to the protagonist
- Ear teasing (he comes close and talks to him in his ear with a lot of sighing, and blows on his ear)
- Massages the protagonist (he rubs his palm, touches him in various ways)
- He takes one of his fallen angel's wings and uses it to clean his ears (!?). At this point, he deliberately moves the pillow the protagonist's head is resting on, and actually rests his head on his lap ← what does this mean...? ? ?
machine translation suddenly starts referring to Belial with she/her now, so I fixed it
・Anti-dox kiss (he says that kissing on the mouth is rude... (a bit vague) and starts kissing places other than the mouth, like the chin, neck, etc. He says that it's necessary to do it more than once, and kisses a few places. He also touches the protagonist's heart and makes fun of his fast heart rate, and suddenly starts biting him, saying "Can I bite this soft part?", and then he uses the protagonist's body as his mouth and says "It's sweet, it makes me want to devour it more" (!?) and it's crazy at the end.)
At the end, he reveals that she was the girl selling apple pies at the convenience store and says goodnight, then kisses him again and leaves
That's the gist of it...
・During the massage, he says "How about here...? It seems pretty hard..." and the voices that make you fantasize about evil things come out many times and make me laugh
・When he was cleaning his ears, Belial said that his pitch black feathers 🪶 are fluffy and have the most exquisite feel
- When he rested his head on his lap, he said with a grin, "If your friends saw the main character resting on her lap, they would probably wet themselves," and it was amazing in many ways.
- As for the final kiss, I personally think he kissed him (= MC) on the forehead or mouth. I hope it was on the mouth.
verse: ╮━━━ ✦( desert son ) ━━━
follows the crocomom theory but instead crocodile raises luffy as basically a shut in. luffy doesn't have his df, never met ace or sabo and crocodile has made a point to basically keep him a secret. baroque works higher up know about him. i might give him a df later in the verse when he has a falling out with crocodile. the boy's very sheltered with soft hands
(idea yoinked from @/sualne 's art)