Hello again, I’m ready to answer your questions (no spoilers). 1) Fiend sharks, well, it’s clear why people are afraid of sharks, and as for his ability to swim through the ground and other physical objects, I think this is a reference to the movie “Sand Sharks”. By the way, in case you missed it, the Fiend shark can temporarily turn into its demonic form, which is very rare for the Fiend. 2) Fiend of violence, well, it’s also clear why people are afraid of violence, especially victims of domestic violence. So now we know that when a demon becomes a Fiend, he is significantly weakened by somewhere between two or three times, and his abilities are limited or unavailable (which explains why Power is so weak, since she is a Fiend). And you might be wondering, why do demons become Fiend? Well, they only do this when it is necessary, for example when they are on their deathbed or to escape. Fiend of Violence by the way has a strong ability that also matches his concept of violence, and this ability he will show in the upcoming film. 3) Spider Demon. It is also understandable why people are afraid of spiders. By the way, here we were told very important information, namely that the more humanoid the demon, the friendlier it is to humans, this should be remembered for the future :). By the way, the spider demon has some pretty cool abilities that she will show in season 2. 4) The demon of an angel, well, what can I say, they are not particularly afraid of angels, except perhaps believers who are afraid of God’s punishment, so yes, the demon of an angel has rather average characteristics. By the way, look on the Internet for pictures of biblical angels, they are quite creepy :). As for his ability to absorb years of life through physical contact, I think that this ability is associated with human ideas that angels take people to the next world when they are on their deathbed or the time has come for them. By the way, the demon angel also has a second ability and it is very strong, but this ability will only be talked about in the upcoming film. 5) Aki's new katana is unusual because it can cut an intangible ghost demon (if you remember, the ghost is intangible). Where did Aki's unusual katana come from? Well, I can only say that he received it from another demon absolutely free of charge, and you will find out what kind of demon this is in the upcoming film. 6) Here is the third way Sawatari used the snake demon that I mentioned in my last comment, namely the "spit out" command. And yes, Sawatari did not enter into a contract with the ghost demon, it was the ability of the snake demon, namely the ability to subjugate the demons it absorbed. Why does the snake demon have such an ability? Well, I think it has something to do with mythologies that feature snakes, such as Ouroboros, because they often swallow or regurgitate something.