• Belphie doesn't know how to swim and is too lazy to learn. The brothers have tried to teach him multiple times, but he always ends up giving up before he can make any real progress. He even fell asleep in the water while Satan tried to teach him once, and after that, the brothers just collectively gave up and accepted he'd probably never learn how to swim.

• Lucifer is terrible at baking and making any kind of sweets in general. This is funny, considering he's one of the best cooks in the house when it comes to preparing literally anything else. Satan absolutely thrives off of this, as he actually masters all areas of the kitchen and will brag about how it's one of the things he's better at than Lucifer.

• Beel loves rock and metal, they're his favorite music genres to listen to and motivate him when he's doing his morning run, practicing for future games, or going through his workout routine. He actually learned how to play drums because of it, and even performed in a concert when a friend's band was doing a show, and the friend called him a few hours earlier saying he couldn't make it and needed him to take his place. That day, multiple videos of the concert were posted to DevilTube and went viral. Everywhere, people were discussing how talented Beel was, and the brothers even encouraged him to enter the music industry. He refused though, saying he wanted to focus on sports as it was his main passion.

• Satan was born a child, though he grew faster than any other demon or angel. The way I picture this is that he would stay the same age for a few years and then jump to another out of nowhere, for example: he'd be 3 years old for a few years, and then suddenly jump to 5, staying that age for another set of years till he jumped to 7 and continued the cycle. This only stopped when he reached the age he'd originally been had he been born when first formed as an emotion in Lucifer's body. And so he now ages normally, as any other demon would.

• There's a magic barrier around the House of Lamentation that stops any demon that's not one of the brothers, Diavolo or Barbatos from even passing the gates. But as mentioned, it only works on demons, hence why Luke was able to sneak in without the others even noticing during season 1.

• Mammon smokes. It's his way to relax after an especially stressful day, he'll stand on the balcony staring at the view outside, alone in his thoughts for as long as he needs to. The brothers understand, as they all have their own ways to cope with stress, and always make sure to check on him at some point while he's there or after. Sometimes though, on very rare occasions, Lucifer will actually go and join him. They'll vent to each other about work, their day in general, and whatever is on their mind while smoking together. Those times are very special for both of them, as they can just chat and relax together without worrying about anything else, knowing they'll always have each other.

• The characters' speech gets jumbled when they're drunk, they just start speaking multiple languages at the same time and it only gets worse the more drunk they are. For example, Levi will start spilling Japanese words and sentences in the middle of conversations, Solomon will talk in Old English and confuse everybody, and Lucifer, as the affectionate drunk he is, will just start mumbling I love yous and a bunch of soft praises in Infenal to his brothers and MC. It's a mess.

• Levi is one of the most popular streamers in the Devildom when it comes to gaming, anime reviewing, and weeb content in general. He's everyone's favorite, and the one people go to for opinions before purchasing anything. He gets sent games before the official release, merch, figurines, etc. And although most of his streams involve just him, sometimes a brother will join. Mammon and Beel for the most part, but the others have all participated at some point. ( Fun fact: Levi broke his record of views when Lucifer accepted to join him after years and years of pestering. They played Minecraft together, chatted about random stuff, and the viewers were blown away seeing a new side of the eldest, as they only viewed him to be intimidating and unapproachable. To this day fans beg for another stream between the two, but Lucifer always refuses, saying that was the first and last time. )

• Lucifer taught Satan how to play piano when he was younger. The fourth born however grew to resent the instrument, lumping it together in the long list of things he'll never pursue again because of how it only makes him more similar to the eldest. He does miss it sometimes though, and very rarely, when he's alone at home, he'll play one or two songs to himself and think back to the lessons Lucifer gave him long long ago.

• Beel gives the best massages ever for some reason. You'd think not because of his size and clumsiness, but he actually knows how to control his strength and be a perfect mix between gentle and rough. Oftentimes Beel uses his skill on his brothers, mostly Lucifer and Levi as they're usually the ones staying sitting for too many hours at a time and end up stiff as rocks afterward.

• Asmo has an OnlyDevil account, where he shares spicy pictures/videos of himself that his fans go absolutely crazy for. His account is very popular and he's actually one of the most sought creators on the platform. Needless to say, the amount of money he makes out of it is no joke.

• For some time after lesson 16, Beel didn't know how to interact with Belphie or how to even feel about what had happened, making him avoid the twin completely. It got to the point where he couldn't even stand sleeping in the same room as him, seeking Mammon every night to sleep with him instead. The second born never minded, as sharing a bed with the younger one kept the nightmares of MC's death away.

• Satan has always been extremely sensitive to certain sounds, textures, and tastes. For example, there's a brand of milk he absolutely despises for how weird it tastes, despite all the brothers ( including Beel ) insisting that it tastes the exact same as any other milk they've had. There's also a certain type of fabric he can't wear because of how it feels on his skin, numerous foods he can't eat as they give an unimaginable ick, and noises that make him physically cringe at how uncomfortable they sound. The brothers have been aware of these things ever since Satan was born, and although they don't completely understand it, they always have it in mind when buying something for him or finding themselves on cooking duty.

• In the Devildom, birthdays are celebrated every 100 years. Diavolo however is an exception to this rule, as he is of royal blood, and his birthday is made into a huge annual event across the entire kingdom. Following this, the brothers only began celebrating their birthdays annually once MC came into the picture, as they wanted to experience as many birthdays as they could while they were still around.

• Lucifer regrets not accepting Satan as his son from the get-go, cursing his past self for denying responsibility for the blond when he was first created and the poor way he treated him. But he didn't know any better, he had just fallen after facing a war against his own problematic father, and the last thing he wanted was to label himself as someone's parent. But now he really wishes things had been different, though he's already accepted that it's far too late now, as thousands of years have passed and he believes he's lost his chance to make things right an eternity ago. It still pains him to this day though, to see the change in Satan's expression whenever someone makes the even slightest suggestion to them being anything more than brothers.

• I've already made a separate post about this one, but the brothers can sense their sins on other people and feed off of it. Also, demon blood is dark black, while angel blood is bright gold.

FIVE NIGHTS AT FREDDY'S (2023) — dir. Emma Tammi