Nocturnal Sweeping Intervallo teaser frame-by-frame analysis
That's right, you didn't think I was going to leave this teaser without saying anything about it, did you? In fact, I have. Way too fucking much to say really.
Before anything though, I wanna give a shout out to @chorin342 for the translations of the hanzi that shows up during the trailer, which helped A Lot with figuring out what awaits us.
Now, onto the trailer itself.
After the several seconds long title screen of the Intervallo, we're given another view of the setting, this time with a sort of tv screen-esque overlay. The whole teaser seems to be somewhat structured to mimic a sort of action movie trailer, potentially hinting to this potentially being a more action-packed Intervallo.
The text (which in case it's hard to read on the screenshot says "We were greeted by a dark street upon disembarking from the bus, illuminated only by faints strands of light.") accompanying this CG seems to be a part of Dante's narration based on its contents. We're likely seeing a glimpse of just the intro part of the Intervallo.
After a few seconds, the following pops up on the screen with a booming sound effect:
This simply translates to "District 8", further confirming information that is about to be revealed.
Just as this text disappears, the narration continues, saying "It was immediately obvious that we had arrived in the Backstreets of H Corp."
Similarly to what I and many other speculated, we are going to H Corp's District, and the Intervallo specifically takes place within its Backstreets.
Then, we get the two following bits of text:
This translates to "Hongyuan/Hong garden Life Engineering Corporation". Or, as the second one illuminates, the full name of "H Corp".
In addition to the reveal of H Corp being a company that specializes in engineered life, the character for the "Hong" part of the name is the exact same as used in Hong Lu's own name. The connection is already clear and we're barely fifteen seconds into the teaser.
Then we're onto the Identity trailers, with the above literally just being that. "Identity".
Both the Outis and Ryoshu Identities belong to the Heishou Pack - Mao Branch. Heishou translating to Black Beast, and Mao translating to Rabbit in the context of the twelve Chinese zodiac animals, as well as Wood in the context of the five Chinese elements.
I'm not going to go over the Identity trailers in too much detail, but I will mention things that I think will be important to the plot of the Intervallo.
The Mao Branch of the Heishou Pack appear to be a group hired by whoever they call "lord". Notably, both Identities express that their loyalty lays with the one that holds that title, rather than a specific individual. They're shown to be ready to betray the one who formerly carried that title at a day's notice, and are aware of their nature enough to deem themselves inherently untrustworthy.
In both trailers the Identities face off against average-looking gangsters. Those are likely to be the enemies we face off during the intro part of the Intervallo, before we run into any Sweepers.
According to the Identities' other voice lines, the Mao Branch's job takes place primarily during the night, potentially "taking care" of whatever target they're given by their lord by killing them in the middle of the night and letting the Sweepers clean them up before anyone can find any evidence.
Ryoshu's Identity here also makes a very interesting comment, about how the Mao Branch has "the same roots" as R Corp's Rabbit Pack, but "have grazed on different grass" and thus comparing them to each other is deemed stupid. Considering the implication of H Corp being a "life engineering" company and R Corp's technology in cloning, this might imply that their respective technologies are in some way similar in nature, yet different enough that it'd be stupid to actually compare them.
I also want to make a small observation about the aesthetics of the group. Specifically their color palette of black and yellow. It honestly kind of reminds me of the Udjat and Arbiters, and considering both of those are essentially military forces (hired by a private individual and a governing body respectively) it might allude to the Heishou Pack's nature as being not that unlike them.
Alright, back to the rest of the trailer.
We get another CG of the Backstreets, alongside what appears to be actual dialogue. (In case it's too hard to read, it says "A-are you sure we're going the right way? I don't like the sound of that weird song...") The most likely candidate to be saying this is Sinclair due to his tendency to stutter and appear nervous when he speaks, but it could be someone else as well.
Either way, this line implies that someone is guiding the Sinners through the Backstreets, potentially into somewhere dangerous and definitely suspicious.
Another text appears:
This literally translates to "round medicine", but it also appears to be the same word as used in two of Xichun's passives, that being bolus. Bolus in this context likely refers to a type of medicine administration, where a dose is introduced to the body to take effect over a short period of time.
Considering H Corp's "life engineering" (perhaps even downright bioengineering) tech, they might have a notable interest in pharmaceuticals as well.
Next scene.
Another view of the Backstreets, this time giving us a clear view of the Mansion taking up the entire goddamn skybox.
The text here (reading "The main streets are most likely teeming with those seeking to bring harm to the young master. We must venture an alternative path.") appears to be a piece of dialogue from an unknown party.
What we can tell about this person is that for one, they're the one guiding the Sinners through the Backstreets, meaning that the Sinners are completely at the mercy of this unknown party. The second thing we can tell about them however is that they're clearly aware of Hong Lu's identity and his ties to the Jia Family.
Considering what we've seen in the Identity trailers, I'd like to suggest that the Heishou Pack aren't going to be our enemies, or at least not at the start. They're likely to be hired by the Jia Family, and thus would have interest in keeping Hong Lu "safe". However, just because they want to protect the young master from harm, doesn't mean they feel the same way about the rest of the Sinners... if you know what I mean.
Next hanzi show up here.
This one translates to "complex" in the context of a building. This could potentially refer to the Mansion in the background, calling it a complex and thus potentially a sort of conglomerate of multiple Mansions. Alternatively, it could be referring to the dwellings Sweepers use, calling those dens a complex of their own.
After this we get a quick glimpse of a black screen getting covered with red Sweeper eyes and a rising noise. Likely foreshadowing as to what awaits the Sinners if they are to follow their new guide.
The scene changes again.
Multiple things. While I didn't capture it in this screenshot, combat takes place in the background here. While it's hard to make out because of the big fuckass hanzi in the way, it appears as if the Heishou Pack is fighting alongside the Sinners rather than against them, further implying that they're the ones guiding them through the Backstreets.
The hanzi here translates to "life insurance". This honestly could refer to a lot of things. It could refer to the Heishou Pack's role as being there to insure Hong Lu preserves his life. It could refer to H Corp's interest in immortality and thus insuring their own life. It could even potentially imply that H Corp deals with more literal life insurance, perhaps being in the business of insuring people with "spare lives" not unlike the situation of Pamela and Pameli in Ruina.
Notably, the "life" in life insurance here uses different characters to the ones commonly used in the term. However, this could just be an instance of PM being a Korean speaking company and thus not knowing the "proper" spelling of the phrase. A mistake in similar nature to them flipping Linton's first and last name, or calling "Don" a surname rather than a title in the original Korean script.
The dialogue here (reading "Looks like everyone in the Backstreets has been getting pretty plucky while I was away. Back then, I could even catch a glimpse of their faces-") is pretty clearly coming from Hong Lu, and continues on (reading "-Because they'd all be on their hands and knees whenever we walked past... Ah, what a wonderful change!").
This bit of dialogue establishes multiple things. For one, the Jia Family is important enough to garner extreme amounts of veneration from District 8 citizens, even out in the Backstreets. However, and more interestingly, for whatever reason Hong Lu alone isn't eliciting the same reaction. Whether it's because as Hong Lu says and there his been a shift in the status quo in the Backstreets, or whether it's something else that is causing people to not recognize Hong Lu as part of the Family is currently unclear.
Then, Ricardo Announcer. You get nothing from me about that, I just find it really fucking funny.
Then, back to the mayhem.
Here the text translates to "east" as in the context of a region. Which, makes sense. We are in the East region of the City now, this is likely a reference to that.
The dialogue here (reading "Oi, up yours with that wonderful change! How much longer 'til we get there?!") very likely comes from Heathcliff judging by the wording. It further foreshadows the suspicious nature of the Sinners' guides and that they might not be leading them where they think they are.
And, in case that wasn't already being made clear, in the background a wave of Sweepers just fucking descends upon the Sinners before static takes over the screen and we're back to the core event illustration.
So.
Let's summarize what we can gather from this trailer.
Our current destination, H Corp's District, is run by Hongyuan Life Engineering Corporation, a Wing with an interest in life insurance and pharmaceuticals. The Jia Family appears to be highly regarded in this District, to the point of likely being the ones who hired the Mao Branch of the Heishou Pack, a group specializing in operations under the cover of the night who are loyal to those holding certain ranks rather than to specific individuals.
Upon their arrival, the Sinners would come in contact with this group, who would recognize Hong Lu as a young master of the Family that hired them, and would thus wish to ensure his safety and likely return him to his home. As such, they serve as guides and allies for the first part of the Intervallo's plot.
However, the path this Pack leads the Sinners down is suspicious and long, and eventually leads them towards the Sweepers. There is a high chance that this was the Pack's trap all along, whether their motives are to take Hong Lu out because of an order from one of his siblings or to retrieve him and take him back to the Mansion while leaving the rest of the Sinners to die is yet to be seen. Either way however one thing is clear - the Black Beasts are indeed not to be trusted.