Lucifer

im pullin this shiz off the wiki dont mind me Lucifer is a demon whose first appearance in Obey Me!'s Main Story and Nightbringer's Main Story was in Lesson 1-1. He has six brothers, and as the most powerful of the seven, he holds the title of "first-born." He also possesses the title "Avatar of Pride" and is a representative of that sin. As one of the main characters in both Obey Me! and Nightbringer, he is included in both games' Intimacy system.

Mammon

Mammon is the Avatar of Greed and the 2nd oldest of 7 demon brothers, has white, messy hair, tanned skin, blue and yellow gradient eyes. He has gold stud earrings and two silver rings on his ring and pinky finger on his right hand, he wears a brown and white aviator jacket with black details, underneath he wears a simple black shirt. He wears blue, skinny denim jeans with a yellow belt, a keychain of yellow and black feathers, he wears black mid-calf boots with white soles the inside of the boots feathered, wears a pair of square, orange shades. Although he's the 2nd eldest, he acts immaturely when he doesn't get his way and is the biggest troublemaker of the brothers. He's egotistic and prideful, though that is only a façade to cover up his soft nature. In his demon form, Mammon has two thin and tightly curled horns and a pair of drooping, bat-like wings. He wears a studded, high-collared, cropped motorcycle jacket with two belts wrapped across his exposed torso, showing off his white birthmarks, and sleeves with white diamonds. He wears black pants with white-outlined diamonds as designs on its left side and studs on its right side. To finish the look he wears mid-length, black leather boots with three spike studs on each boot.

Leviathan

Leviathan is the Avatar of Envy and is the 3rd oldest among the 7 demon brothers.Leviathan has indigo hair with side-swept bangs that slopes to his left, eyes that are orange with a purple gradient, and pale skin. Hewears a long, black and white cardigan jacket with 3 buttons of different emojis on right side. The jacket long enough to reach his knees. Under, he wears a colorblocked black, white, and blue mock shirt. He wears joggers with 2 orange stripes on each side. His sneakers are orange and black. In casual attire, he wears black headphones with orange and blue design.He has dark branched coral-like horns that curl up, his scale-like birthmarks visible on the right side of his neck, and a long, serpentine tail covered in scales. He wears a black halved side-zipped hoodie with blue lining, decorated with droplet scale patterns in several areas: the stream of white flowing from his left to right, solitary golden-yellow droplet at both his upper arms flanked with black ones. Underneath, he sports a semi-sheer shirt, white and gold accented clip-on suspenders attached to snakeskin reminiscent pants, as well as black gloves. There are purple highlights on horns, his hoodie along the side of his arms, and the soles of his shoes.

Satan

Satan is the Avatar of Wrath and is the 4th oldest and physically the youngest among the 7 demon brothers. He has layered blond hair that's parted in the middle and green eyes with a yellow gradient. He wears a preppy, casual outfit consisting of a black shirt overlaid with soft light green V-neck sweater, teal-colored pants with white side buttons, and a pair of brown shoes, matched with a dark sea-blue blazer with vertical stripes running along his chest and below his arms, as well as a gold-framed white leather belt. He characteristically wears only the right sleeve of his blazer and drapes the other side over shoulder. On Demon Form he has polished black scaly S-shaped horns and black spiky tail which fades into light green, said tail can injure those who touch it if they aren't careful. He neatly wears a dark gray dress shirt with hidden buttons, white collars, and cuffs, as well as black pants with widely-scattered white dots. Above his shirt is a black ribbon whose ends are elaborately weaved into modest loops on and across his chest in a ribcage-esque way, revealing much of green underside. He completes the look with a black boa over his shoulders and a white embellished belt. His demonic markings are located on his back.

Asmodeus

Asmodeus is the Avatar of Lust and the 5th oldest among the seven demon brothers. Asmodeus has champagne-colored hair with long, sweeping bangs on the left side. His eyes are light orange with a yellow gradient. He is the shortest of the brothers, but often wears high heels, which makes him look taller. Asmodeus wears a white stand collar jacket with a zipper closed from an estimated area of his belly button to his chest. He is revealed to wear a pink shirt inside of his jacket. His pants are in a reddish-pink color with 2 pockets at the front on each side. A belt in a shade of orange is worn around his pants and he wears black leather shoes. A black scarf loosely wrapped around his shoulders.Asmodeus's demon form consists of a black, sleeveless, button-down shirt with black roses decorating the front and a golden scorpion wrapped around it. There is a heart-shaped hole on the back of his shirt. He wears two black cuffs at his wrists. His pants are black, the right leg consisting of consecutive gray and black fabric bucked all they way to the ankle. He has four bat-like, curly tipped wings and a pair of horns with pink-tinted tips jutting out from his head. He has three heart-shaped birthmarks on his left arm.

Beelzebub

Beelzebub is the Avatar of Gluttony and is the 6th oldest among the 7 demon brothers. He has messy orange hair and violet eyes with a pink gradient like his twin. He's the tallest of brothers, and extremely muscular despite his everlasting tendency to eat. This physique is due to his other pastime, working out. He wears an indigo and orange fur collared parka with white and orange design on respective sleeves over a black shirt with white and orange triangle design. He wears loose, dark pants with two triangle patterned belts looping around either side, as well as a purple belt, none are in belt loops. He also sports a two triangle necklace wrapped around his neck several times like choker, as well as a bracelet tied around his wrist.Beelzebub has a pair of black, ridged horns that curl around his head like a circlet. He wears a black shirt, low cut enough to show off the stripe birthmarks on his chest and neck, as well as his cleavage. Over that he sports a cropped black punk jacket with a popped collar. The collar has a buckle dangling from it and two patches of gold spikes on either arm. He has a large pair of insectoid wings visible on his back. He wears a pair of black pants, three different belts, and a pair of cowboy boots.

Belphegor

Belphegor is the Avatar of Sloth and the youngest and 7th sibling among the 7 demon brothers. He has dark indigo-grey, white-tipped hair with long bangs that cover his right eye, and violet eyes with a pink gradient. He wears a hooded shawl jacket with one blue and white striped pocket on the left side of chest. The inside of the hood is bright blue. The jacket is buttoned in the middle; the third button is enclosed. The jacket's cuffs are white and it has two white stripes on the right sleeve. He wears yellowish-brown pants and brown laced leather boots till knees, he also carries a cow-patterned pillow with a cow tail on it. On demon form, he has two twisted rams horns as well as a long, cow-like tail that has the occasional thorn and is prickly to touch. His outfit has a cow motif with his black hoodie having cow-like pattern and a horseshoe on its upper right side. The hoodie has four buckles at the front with one being belted properly. Inside, he wears a blue shirt, the inside of the hoodie shares the same color. He wears black baggy harem pants with a belt of magenta and blue triangles on the right side. His short combat boots reveal the cow-spot birthmarks on his right ankle, which also appear on the right side of his neck.