> "Huh. Are you good in a fight?"

> Looking through the documents something clicks and you have an epiphany.  The grave robberies are linked to mysterious disappearances and deaths!  Each grave robbery appears to have a matching disappearance/death file in which all the descriptions (height, gender) match!

> Putting two and two together you ponder why the cases were first labeled as "grave robberies"?  Graves usually contain bones and occasionally valuables depending on cultural practices, you assume it'd be rather obvious to discern between a "mysterious death" and a "grave robbery".  Unless... only skeletons were found, leading the guards to assume a grave robbery took place?

   

> Ah, so as suspected,  it is more along the lines of "guards and inspectors chalked it down to Grave Robberies instead of Mysteriously-Motivated-Enticed-Provoked grave-sites Trespassing&Searching "!

> Determing the " Timing and Placing Distance" between matching cases is important too...

>... as well noting the most recent matching ones, particulary IF there is any " Supposed Grave Robbers not yet Mysteriously Murdered"...

> ... This also means, go confirm it nonetheless,that on one hand the "Matching Mystery cases " are finished or almost  BUT on other any next "New Mystery Murder Act"  is bound "to have a Linked-Prelude of previous-linked Suspected Grave-Robberies "" BUT "Mystery-Murder Overshadowed"...

>... can it be, especially the last segment a. dat least cirmustancially, confirmed AND proved at this point?

What about tracks 10 and 11? Did the video mention those?
Tracks 8 and 9 seem interesting to me. The name of track 9 literally mentions Jizo protects who protects the spirits of dead children and that all ties up with Ebisu, that's pretty obvious but I don't really see how that might be applied to Renko or Maribel. But, researching more into the topic, Jizo is also seen as a deity that protects travellers on roads and considering the name of track 8 literally has road in it, it's safe to assume they're connected in a way.
Considering all the Tanabata references, it wouldn't be too much of a stretch too see a parallel between Renko and Maribel with Orihime and Hikoboshi. ZUN might be too much of a coward to have them get together but he can't hide the romantic tensions between the two.

There is rather to point out with respect and/or praise out the courageous and persevarant justice and rightfulness of ZUN(Jun'ya Ota)to not cave  AND DODGE  "odd (and at odds) kind(s)of romanticism(s) and romance(s) " under pressure & pressurers, influence & influencers, naivety & naive-makers and so on...

Renko's and Marybel's focuses are certainly "reflections of and from Japan-ism, Far-Eastern-ism, Mysterious Boundarirs and Crossings M "Native(Renko), Foreigner(Marybel),International (Both) Japanism and Far-Easternism "...

More in person they are"Quite best close young and, especially Marybel,  Partly-Reckless(likely around 24-5 during the middle or later part of University Ph.Doctorates or Masters) Friends, Researchers-Associates,Thinker(mostly-Renko)-Dreamer(mostly-Marybel)  INVESTIGATORS-EXPLORERS DUO OF CLUB MEMBERS "; alongside, if I am clear and of help enough ,  any inklings in-out Gensokyo and then "the other Other-Realms(Lands) and Other-Boundaries(Crossing or No-Crossing Passages)", themore or less meant,  remembered,  hinted or the like

Youkai: Depends on what type of Youkai. Tsukumogami will likely go into vocations that fit their original objects and talents, with the side-job of scaring people. Beast Youkai will likely be roaming the Forests (Mainly the Great Youkai Forest and Bamboo Forest of The Lost) and devouring any Humans foolish enough to wander in with no protection. Vengeful Spirits are out to get revenge in general unless they mellow down, so their lives are focused solely on that goal. Then there are the Oni who are either partying and getting drunk every day between rounds of making people in Hell suffer if they're in current Hell.

There's also the classical Youkai such as Tengu and Kappa that live on Youkai mountain. I'd argue they have the highest living conditions in Gensokyo، having technology "comparable or greater than the outside world's" and "an automated factory that produces the necessary items to meet the needs of everyday life". But the fact that they still use newspapers to transmit information still means they haven't developed cable television.

Depends on the individual and species, however, I'd like to update you with some information I found specifically for human outsiders that I found.

The latest chapter of CoLA has this to say regarding them

Gensokyo's youkai are forbidden from attacking humans. Why? Because they know that if the humans die out, the youkai can't keep existing either. So they settle for 'scaring them practically to death', at worst. However, with regards to the humans who disappear into Gensokyo from the Outside World, the rules are left unclear. Some violent youkai say that unmanaged Outsider humans ought to be fair game. Conversely, other youkai argue that because the Outside World keeps its humans under even stricter management than Gensokyo, laying a hand on them could lead to Gensokyo's discovery, putting its very existence in peril.

I also recall (though I might be entirely wrong here and might not even be canon, so take this with a major grain of salt) reading that all three factions of the Animal Realm mafia are essentially interested in keeping outsiders alive, because they want them to be recruited for their cause (I don't recall where I read this however, it might be a misinterpretation of one of CoLA's chapters or one of the endings of the latest game that I read, or somewhere on the Touhou wiki), I could be entirely wrong here but seeing as animal realm entities tend to often appear on the surface and they are indeed looking for more beings to spice up their numbers, I wouldn't call this theory farfetched.

This plus Aya's article from SoPM stating that outsiders are so incredibly rare to spot that youkai literally need to change their diets and all leads me to believe that your odds of surviving in Gensokyo as an outsider is higher than you may think. You may want to spawn as closest as you can to either the Hakurei Shrine or Gensokyo (Kourindou is also okay though), bonus points if you have apparel that mimics the human villager's clothes, because even violent youkai may mistake you for a regular human villager and may decide not to attack you (at worst, they could toy with you in order for their boredom to be relieved), just don't spawn inside Youkai Mountain (unless you were near the Moriya Temple, which is also fine)

Though even if you were not attacked or taken to be the lunch of a youkai, being a minion of the Animal Realm beasts isn't likely to be all that jazzy, so avoid that if you can. Because you'll likely be facing grunt work (aka, the boring chores) or you'll be used as a host for other animal realm spirits to be possessed, and is unlikely that they'll treat your body very well so yeah, keep that in mind.

Human Village what everyone else said, working under conditions of feudal Japan and knowledge of that era, not fun but you do get access to Akyuu's library and knowledge if you can chance a meeting with her (and a conversation with Keine might be the coolest thing if you're a history buff) so likely not all that terrible, you may even get to be given a small house somewhere or something. Which, given the prices of real estate globally, that may be a boon in by itself :P

Youkai and Gods what everyone else said. With the caveat that there's more limitations on youkai regarding outsiders so they may need to find new diets or even hobbies. Gods also what everyone else said, though it depends on what kind of god you are and what your specialty is you may need to put more effort than average on specific seasons (like Shizuha for instance).

One more thing, shinigami don't hunt hermits, they give warnings but is not their job to hunt for them. The ones who hunt for hermits are Kishin, and from what I've seen, primarily nasty cases of them (like Seiga in WaHH), Kishins are no joke though so you may need to train a lot in case you get spotted by one.

That's about it