This route felt like hard-mode after the last two routes, with just about everything stacked against Haruaki. Granted, the game needs to be stacked for it not to be too easy for Haruaki (given his looping), but I could sympathize with his "I felt like I was playing a troll game designed to be impossible to win" statement. By the point where Meiko was revealed as the badger, I could only laugh at Haruaki's plight.
Yudai ended up being somebody who is very similar to Haruaki, both in terms of his ability to approach the game as a kind of neutral outsider, and also in terms of being much more cold and calculating that you'd initially think. While he played an important role, he himself did not help unravel the underlying mystery.
As a general note, if there was still any doubt left, then this route soon makes it abundantly clear that this is a supernatural mystery. However, Haruaki himself keeps denying this until the very end, where not even he can deny it any longer.
Haruaki
One of the first things Haruki notes is that his behavior in the last route (Rikako's route) was out of character. My initial guess was the local food, which Haruaki also partakes in during this route, but there are also two other alternatives presented to us: Firstly, the Badger God states that Haruaki has "breathed so much of the mountain's energy", which likely refers to the mist. Considering that his experiences (and trauma) have been accumulating over the routes, it also seems possible that any effects on his personality would accumulate as well. Secondly, we learn that Haruaki according to himself lacks a strong foundation for his personality and that he tends to mold himself after his surroundings, meaning that he could have been influenced by the close bonds of the Yasumizu villagers, but that seems less likely.
Speaking of experiences and trauma, it seems clear that Haruaki is becoming increasingly disassociated by his repeated looping. We've gone from him being treating death as something to be avoided to it being a convenient way to solve problems, so much so that he starts considering suicide the moment things go wrong. Similarly, he starts to get almost petulant when things don't go his way and become resentful at other people when they don't act according to his plans, even if doing so would cost them their lives. Not to mention that he slips into the role of a Wolf with little friction.
I am reminded of another VN (that shall remain nameless) with a similar plot point, involving a bike-trip in a never-ending loop. However, where it is a relatively short scene in that VN, Raging Loop has been gradually wearing down Haruaki's humanity over a much longer period of time, which makes it feel a lot more unsettling.
At the end of the route Haruaki suddenly produces the sawed-off shotgun and uses it to kill Mocchi. However, I am pretty sure that we never saw Haruaki securing this weapon and seem to remember it being treated as missing until the end. So either I overlooked something significant or this strongly suggests that Haruaki is not a reliable narrator, at least on this route.
Wolves
This route naturally gives us a lot of information about how the wolves operate at night, including the previously unknown rule that wolves must kill every night. If not, then they will die instead. But for whatever reason this rule is not mentioned again, not even in the context of Haruaki trying to convince the other wolves not to kill.
We also see how the wolves dress, which ends up being in a ritual garb that serves to obscure their identity and to catch any bloodspatter from the killings (a point I had wondered about). The 3 glowing eyes were not, as I supposed, infrared cameras, but markings drawn on a wooden mask. These suits match up with the wolves we saw at the end of Yomi, but they do not look anything like the creature that Haruki saw the first time he died. Haruaki supposes that he just mistook the costumes for something else, but considering everything else that happened in this chapter it doesn't seem unreasonable to suppose that there are more than just people in costumes out during the first night.
Cheimi
Cheimi dies almost immediately in this route, but it is strongly suggested she too is remembering the previous loops. Her act of self sacrifice makes sense if you treat her as a player of a game (like Haruaki) rather than an actual participant, but it doesn't really sit well with me given her personality and supposed knowledge at the time in the story.
Considering also her last words upon seeing the Wolves, namely "Haruaki, don't become ...", it seemed likely to me that she was acting to stop Haruaki from going down this path based on her knowledge (and feelings) from previous loops. It is, however, not clear how she knew that Haruaki was a wolf this time.
We never do learn what the blood came from that the Wolves smelt when they met her the last time, but it is possible that she was shooting at the dogs.
Haru
Haru also expresses some sense of familiarity when she meets Haruaki for the first time (again), suggesting that more and more people are starting to remember. Another hint is given when Haruaki calls her formidable for having stabbed him when he tried to not kill anyone, for which she apologizes. But she shouldn't even be aware of what he was talking about. Her arch in this chapter was also quite interesting, though I am not sure I buy the way Haruaki manages to get her on his side.
We also learn who Haru's other personality is, namely the Badger God, who have been possessing Haru since the last feast. It was Haru that spoke to Cheimi and Haruaki the last night during Yomi, wearing a costume made by Yasu/Mocchi/Haru. According to the Badger, Shin'nai consists of three goods, one as good as dead, and one that is an enemy to Haruaki. It seems as if the Badger is the god that is as good as dead, but it was not entirely clear to me, and it may refer to a different entity altogether (see below). At one point it also refers to the wild dogs as "the snake's dogs", which may be a reference to one of the three gods, but may also just be an insult (possibly referring to an act of betrayal).
The Badger God itself is a bit enigmatic, in that it presents as hostile to humans (when Haruki offers to help it), but it also seems to assist Haru in helping Haruaki when needed. Haruaki does seem to be right that Haru can switch at will, as also evidenced earlier on during the kiss scene, but he also thought the Badger to be a mere secondary personality. That is quickly disproven and I also wonder if he was wrong about the Badger not wanting Haru to sacrifice herself to save Haruaki. That said, the Badger straight up attempts to take over Haruaki, so it is a threat even if it has some interest in (helping) Haruaki.
Kanzo
Kanzo acts very surprising in this route. More specifically, he is unusually trusting of Haruaki, which leads him to falsely suspect Yasu and subsequently be hanged after he loses his temper. Perhaps it is merely a plot contrivance, but it certainly stood out to me. It is also suspected that he has unfinished business with the Old Man or possibly that he knows that the Old Man might try to kill to escape being hanged, since he also punches the Old Man in this route, seemingly without provocation, and hangs the Old Man himself.
Hisako
While talking about local myth, Hisako brings up that Shin'nai and Ookami are the same, evidenced some sort of kanji pun or switcharoo. This makes sense based on what the Badger God tells us, namely that Shin'nai is a mashup of three gods. If so, then we have Shin'nai, a useless god (who may or may not be the Badger), and the Ookami, who are presumably the one(s) the Badger described as Haruaki's enemy.
Hisako also points out that Fujiyoshi seemingly had an older name, Fushiyoshi, which was something that caused me to trip up a bit early on when reading this VN. I suspect that this will be important to understand the truth of the village, in the same way that Ookami ended up being the same as Shin'nai, but no explanation yet.
Meiko
The sheer comedy of Meiko being the Badger was one of the highlights of this route, as was the turnabout employed by the humans in the "bad" end (where you don't listen to the Badger God). About midway through the route I also realized that Meiko had so far been on of the only people who survived all the way to the end every time, something that Haruaki also caught onto near the end. While he considered her the possible cause of the looping, I considered if she could be one of the other gods. However, the fact that the Badger possesses her seems to speaks against her being one of the gods.
However, she is very obviously connected to the mystery in some manner. Firstly, there's the fact we don't even know her name (Meiko being given to her by the villagers), which is obviously odd. Secondly, she arrived by way of the river, which we have good reason to believe to actually be connected to the mystery. Thirdly, she doesn't even flinch when Haruaki guns down Mocchi in front of her. And finally, and perhaps most importantly, she strongly implies that she has been in one or more feasts before.
Or rather, she described having fled from the wolves who ate the "horse", which I originally interpreted as a feast like the one at Yasumizu. However, knowing what we now know, there is another possible interpretation, namely that she is describing the killing by the Ookami of an as of yet unnamed god or guardian. If so, that would likely make Meiko either a god or a guardian herself, or at least one such possessing a child.
The Corruption
The Corruption turns out to be a large number of wild dogs roaming the village. Somehow the Wolves are able to keep them at by splashing themselves and their surroundings by water, but the water itself does not seem to be special, considering that they were able to just refill their supply from a tap in the dinning hall. Possibly the container or instrument (a bucket and a ladle) are special, or there is something about the water in Yasumizu.
The dogs also explain the source of all the animals corpses found in the village square, but the dogs do not explain everything about the deaths by corruption. For example, Hisako is described as having been crushed in Cheimi's route, which doesn't really fit if she was torn apart by wild dogs. However, we can probably conclude that Hisako was presumably prevented from purifying during Rikako's route, and was subsequently torn apart while out at night with the other wolves.
The Dream
The Sheep came out of left field, but it was also heavily foreshadowed. After all, this is the game that told you "Just a dream, wanderer" every time you died. Still, I did not expect that character to actually play a role in the story. I briefly considered if the Sheep could be one of the three gods, but it doesn't really fit into that model.
So now we know that the looping is due to the region being put into a "dream", with Haruaki only being able to perceive it thanks to the Sheep preserving his memories. Presumably the dreamer is the God we saw awaken at the end of this route, though the cause of the dreaming ending is unclear. My initial thought was that it was due to the wolves winning, but that has happened before, in the first route, so I am at a loss here.
The Sheep warns you not to cause that end again, which obviously made me curious to immediately try it. However, nothing changes during the second replay of that end.
To be honest, I am a bit ambivalent on the Sheep so far. It was fine as a mascot/tutorial character, but I'm not sure how I feel about it being an actual character in the game. It does, however, fit neatly with the game's theme of animal guardians, despite it's cutesy appearance.
The Mini-mart attendant
I refuse to accept that this woman has nothing to do with the mystery, which makes me reach for any possible explanations for who she could be. One possible answer is could be that she is one of the three gods, but that does seem like a stretch. I guess we'll see.
What's next
At this point we seem to have two open branches: The first choice in Cheimi's route (Dense Mist: Her Objective) and the first choice in Rikako's route (Wit: How to pass time). Out of curiosity I read the hint this time, to see if the Sheep had anything else to say, and while it didn't it have any new information it did suggested doing Cheimi's choice, so I'll start with that.