Adopted by the Demon Bros
Prompt: Obey Me x Twisted Wonderland headcanon for all the characters finding out yuu is adopted by the demon brothers. Adeuce and Grimm face realizing they have been getting the literal devil child in trouble a day in and out/everyone else who had a overbloted being like, “Oh, crap, I attacked a literal demon kid.”
Gender: gn!Reader
“I’m being serious! Look!” You shuffled through your phone’s gallery to find your birthday celebration video. “See!”
The three men silently watched the video, and Ruggie was the first to speak. “They’re just wearing costumes. You ain’t fooling anyone.”
You gripped your phone in frustration before yelling, “Fine.” Which brother to summon? Calling Lucifer or Satan was out of the question; calling Asmo would be risky as he would find the Savanaclaw members attractive and possibly charm them; calling Levi or Belphie would result in chaos, so that felt Mammon or Beel.
You closed your eyes and began chanting a spell. Jack and Ruggie didn’t react, but Leona’s ears perked up as his muscles tensed. “Heed my call and come forth, Mammon!”
The second brother appeared out of thin air. Jack started to growl, Ruggie’s ears lowered as he backed away, and Leona maintained his composure but kept his guard up. When he saw the men, Mammon immediately pulled you into a protective hug. “Who are they? Are they tryin’ to hurt ya, (y/n)?”
“Nope! Mammon, I want you to meet my friends. The princely prick is Leona, the clueless but sweet musclehead is Jack, and the ever-hungry hyena is Ruggie,” you giggled. “So guys, do you believe me now? I am adopted by the seven demons~ also known as the Seven Rulers of Devildom.”
From that day on, Leona never picked on you but didn’t let you get away with calling him a prick. Ruggie never played around with you nor tricked you into doing anything, and Jack was cautious around you.
Lilia and Malleus chuckled and thought you were trying to tease Sebek with your statement. Silver stood beside his father in silence as he tried to study your expressions. He was the only one who didn’t think you were joking.
“Human! Do you believe I, Sebek, would fall for your tricks?”
His tone was firm and loud, as usual, but you also felt a sense of mockery. Yes, what you said would have been hard to believe if you were in a world filled with only humans, but in front of you were two and a half faes. Out of them, one could turn into a dragon.
“I am telling the truth! I am adopted by demons,” you frowned.
“Demons don’t exist,” he said while rolling his eyes.
“Sebek, you are part fae. Lilia and Malleus are faes. Malleus has dragon horns…and Silver is a human adopted by Lilia, a fae,” your frown grew deeper. “So why is it so hard to believe my family members are demons.”
“You are lying, and I will not allow you to speak a lie in front of the future king of Briar Valley!”
You were at your limits, and without saying a word, you took out the wand Solomon gifted you and wildly waved your arm with the tip pointing to the ground. In a few seconds, a large circle with an intricate pattern appeared on the floor. Much to the Diasomnia members’ shock, the magic formation glowed red, and suffocating dark energy poured into the room.
Lilia and Malleus quickly used their magic to suppress the formation and stop the entity you were attempting to summon. Sebek was speechless, and Silver was stunned yet amazed. Before any of them could say a word, your phone rang.
“Hey, Lucifer!” You emphasized his name more and chuckled, “Everything is okay. I wanted to introduce you to my friends because they didn’t believe me when I said demons existed. Okay, I will take care, and yes, I am eating properly and focusing on my studies. Love you too! Bye.”
You slid your phone into your jacket pocket and looked at the four students. Their faces were pallid, and they only stared at you with wide eyes. Feeling like you got the last laugh, you playfully smiled and poked them for the final time. “Why do all of you guys look like you saw a ghost?”
“You are…what?” Idia asked.
“Adopted by a family of demons. Seven demons, to be exact,” you smiled.
He blankly stared, but before the silence could get uncomfortable, Idia said, “So lemme guess. The oldest brother comes off as cold, cruel, and arrogant but is caring and misunderstood. Not that he cares. The second brother is the family joker, comes off as rude, but is the kindest one – always lookin’ out for his brothers. The third brother is a shut-in otaku who is also a gamer and thinks badly about himself…but all he wants is someone to understand and love him.”
Ortho didn’t think his brother could talk so much in one go, but Idia continued, “The fourth brother has anger issues and pretends he doesn’t care about his brothers. In reality, he does. He also likes reading and cats. The fifth brother is obsessed with his appearance, but his beauty is unparalleled. He’s easy to get along with but is very clingy. The sixth brother is a musclehead and has a bottomless appetite. He cares about his family more than anything and will protect them at any cost. The seventh brother sleeps all the time and is spoiled by everyone. He sometimes has a short temper and is intelligent. Then you woke up from your dream and realized it was only a game.”
“Running a lie detector scan. Scan completed,” Ortho said. “Onii-chan, (y/n) is speaking the truth. They are adopted by demons.”
“What’s next, Ortho? Her family members’ names are Lucifer, Mammon, Levithan, Satan, Asmodeus, Beelzebub, and Belphegor,” Idia sarcastically said.
“Yes,” you said in absolute shock.
“What?” Idia questioned.
“Upload (y/n)’s family report from NRC’s database. Onii-chan, you are right! Those are the names of the demons,” he laughed.
You and Idia stared at each other without moving for hours. Neither one of you could process what just happened. Meanwhile, Ortho read the details of the demon brother’s out loud.
“Maybe because you said your family is made up of demons?” Ace laughed. “Demons…actually demons? You couldn’t think of anything better?”
“It’s okay if you don’t want to introduce them to us,” Trey sighed.
Deuce felt guilty for laughing at you earlier and apologized, “Sorry. Didn’t mean to laugh earlier, but what you said was funny…”
“(Y/n). You look like you are about to cry,” Cater chuckled, “and Riddle, why do you look scared?”
“S-Scared? Of what? Demons don’t exist…,” the house warden said under his breath.
“I was going to ask Asmo or Mammon to come over, but I changed my mind. You guys deserve to meet Lucifer or Satan.”
“Lucifer and Satan? Like the literal devils?” Ace laughed harder. “What imaginary world do you live in?”
“Okay, that’s it!” You closed your eyes, chanted a few words, and called for Satan. “Come forth and answer my call, Satan!”
Ace and Deuce nearly screamed when a man with horns and a spikey tail appeared beside them, looking confused. He ignored them and looked at you. “(Y/n), why did you summon me? Did something happen? And…who are these men?”
“Satan! These men are being mean to me, and I want you to put curses on them…well, except Riddle…he wasn’t mean. Curse Cater, so he can’t use his phone all day. Curse Deuce so he can’t pick fights with anyone. Curse Trey, so he can’t brush his teeth for a few days. Curse Ace, so everyone laughs at him whenever they see him,” You g gritted your teeth.
“W-Wait, I need to upload photos daily! I can’t disappoint my followers,” Cater exclaimed while holding his hands up in defense. “I am sorry for not believing you! By the way, Satan, can I take a picture with you? I need a viral photo.”
Satan raised an eyebrow but ignored his request and turned his attention to you. “You call those curses? How about I turn all of them into chihuahuas?”
“Then I would have to take care of them,” you vigorously shook your head.
“When they try to talk, they start singing, but their singing sounds like listening to a soundtrack backward?”
“Oh…I like that idea! How about getting Cerberus to chase them around?”
“I can’t control Cerberus…only a CERTAIN someone can,” Satan frowned. “Making them invisible?”
“They have grades to maintain and will be expelled if they fail. How about bringing them to Devildom? They can see what hell looks like.”
As you and Satan threw ideas back and forth, the members of Heartslaybul stood in a corner, huddled up. Your words were enough to make them believe you were being raised by demons – they all made a mental note to never mess with you… ever again.
“I dislike such senseless humor. Kindly stop,” Vil politely requested as he glared daggers at you.
“Why would I joke about my family? They really are demons!”
Epel shifted uncomfortably and mumbled, “It ain’t nice to call yer family…your family by such a mean name.”
“Mean? Epel, just like you are a human. They are demons. That’s their race,” you pouted. “I am not trying to be mean.”
Vil took a few deep breaths to calm himself. He folded his arms across his chest and looked you straight in the eyes, “Very well. Then why not call one of your family members here? I am certain that if they are demons, you can summon them here.”
“Oh, then I should call Asmo. He will get along with everyone in Pomefoire.”
You closed your eyes and muttered a chant to open a portal for Asmo. You stood with your arms open, expecting the fifth brother to run out of the portal and hug you; instead, you saw Levi step out of the portal and instantly freeze. Seeing unknown people staring at him, the third brother frantically looked for a hiding place. He ran behind you and bent down. “Too many…people…”
“Levi? What are you doing here? I called Asmo.”
“I…wanted to see y-you,” he shakily whispered.
The members of Pomefiore stared at Levi’s tail, not believing what they were seeing. Epel’s grandmother always taught him that demons were terrible – creatures of the dark that could hurt and kill, but Levi looked nothing like what she had described. Rook, on the other hand, was fascinated. If he asked you to visit your homeland, would you take him?
“(Y/n). I apologize for my behavior earlier. I did think you were lying, yet you proved me incorrect,” he smiled. “Levi, welcome to Pomefiore. My name is Vil Schoenheit, and I am the house warden. Would you like to join us for lunch? We won’t bite. I promise.”
“Demon?” Azul pondered while pushing his glasses up with the tip of his finger. “Ah, I see.”
Jade nodded, “My apologies. Rather unfortunate that we cannot select our family members.”
“Cheer up, shrimpy,” Floyd added. “You’ve us.”
“What? I’m very confused. Oh, wait. That’s not what I meant,” you laughed. “I don’t mean my family members are demonic. I mean, my family members are actual demons.”
“Actual…demons?” The house warden chuckled. “(Y/n). Did Ace accidentally hit your head with a spell drive disc again?”
“I’m being serious! Fine, let me prove it to you. Since you three enjoy tormenting people, it’s time someone tormented you,” a devilish smirk tugged on your lips. “Come forth, Beel! Come forth, Belphie!”
“(Y/n)? Is everything okay?” Beel asked, concerned.
Azul jumped at the sight of their horns while the twins stared in shock and amusement. You quickly took out your phone to secretly record their reaction. “Hi, Beel! Everything is a-okay! Belphie. Beel. Meet Jade and Floyd. They’re twins, just like you two. And this is Azul.”
Belphie nodded, still half asleep, but Beel was too distracted to reply. The smell of freshly cooked food tickled his nose and drew him towards the Mostro Lounge kitchen.
“By the way, Azul, won’t you treat my family to your famous Mostro Lounge menu?”
He noticed a hint of teasing in your voice but didn’t think much of it. “Ah, where are my manners? Jade. Floyd. Kindly treat our guests to any food or drink they like.”
You smirked, “Payback time.”
Since that day, Azul banned you from summoning Beel inside Octavinelle. All the profits he made for the week were devoured by the sixth brother within an hour. Also, the students of Octavinelle thought twice before giving you a hard time.
“I wish I could call all of them here, but that would get too chaotic. Let me call the prettiest and easiest one to get along with!” You recited his change and called his name, “Asmodeus, come forth.”
Jamil’s eyes widened as a gasp escaped his lips, “Wait, why did your chant sound like a real-“
“Sweetie!” Asmo appeared behind you and threw his arms around you. “I missed you so much. Why did you choose to go to a school so far away? I worry about you so much that my skin is feeling the stress. Come back home with me!”
“Sorry, Asmo. I miss you too, but I can’t drop out after coming this far. Wait for me a little longer.”
“Alright. If that makes you happy, I will wait,” he smiled and looked around.
Kalim beamed at him while Jamil stood with his back against the nearest wall, looking like he just saw a ghost. Asmo chuckled, “Sweetie, won’t you introduce me to your cute friends?”
“Asmo, this is Kalim, and,” you looked at the vice house warden and bit the inside of your lip to suppress your laugh. “That’s…Jamil.”
“Why do you look frightened? Am I terrifying?” Asmo sulked. “But I am the most beautiful demon alive…”
“You are pretty,” Kalim beamed.
“Don’t worry about Jamil. He probably has a secret fear of demons,” you teased. “He will come around eventually.”