Obey Me! × Reader Oneshots

Yandere!Mammon - Firework Show Gone Bad

Graciously requested by tisC51

"MC! Where'd you go?", Mammon asked. He swore up and down you were right there a second ago.

"I'm over here!" Waving your hand, you directed him to your location. 

"Don't go running off like that! It's my job as your first to protect you, but I can't do that if I don't know where you're at!" 

"Alright, Mammon. I'll be more careful next time.", you giggle in response.

"Hey! I'm serious!"

"I know. I know. Calm down. Levi needed me to trade some spirits in Mononoke Land with him." Mammon glares at Levi's distant figure before turning back to you. 

"Just tell me next time. The Great Mammon can't be preoccupied worrying about a fragile human."

"It was really quick. Anyway, we have to get going, or we'll be late."

~~~

A week ago, they had posted the location for the Devildom Annual Firework Show on Devilgram and you been wanting to go since. You asked Mammon if he wanted to come with you. At first, he told you that he didn't want to go to some dumb firework show, but with a puppy dog expression said that you'd ask one of his other brothers. That immediately riled him up, saying that as the one assigned to watch over you, he should be there to do just that, and that you'd better appreciate that the Great Mammon is willing to escort you.

At the firework show, you're the one clinging on to Mammon instead of vice versa. Public places made you super uncomfortable, nearly claustrophobic. Being around the brothers was one thing, but a crowd of complete strangers terrified you to no end. Seeing how terrified you are, Mammon did his best to sooth your worries, telling you that nothing you dare hurt you under his watch. Between this sweet boy and the beautiful light display in the sky, you felt a bit more at ease. 

You smelled something delicious. Turning around to see where the sent is coming from, you spot a popcorn cart strolling by. That's when you notice how peckish you are. It's barely two feet away, and Mammon is so enthralled by the fireworks, that you figure it wouldn't be so bad to venture out on your own. It takes a second or two to gain enough enough confidence to commit to the deed, but you eventually get to the cart. 

"One large bag, please.", you ask sheepishly. 

"You're a human, aren't you? How about you get closer, and I'll eat you instead!" The cart attendant takes hold of you, but you're quickly yanked out of their grip before you could shriek for help. 

"This is MY human! Back off before I DESTROY you!" You don't need to look to see who's hovering over you, but you do anyways. It'd none other than the Avatar of Greed in his demon form. "That goes for everyone else! GOT IT!?" He holds onto you tightly, then flies of to a secluded location."

"MC! Never leave my side again!"

"I'm sorry, Mammon!" Tears well up in your eyes.

"I don't care where we are, even at the house!"

"I thought it'd be fine to-"

"You nearly got eaten!"

"I get it! Can we just go home?"

"Yeah. The fireworks were boring, anyway."

On the way back to the House of Lamentation, Mammon holds onto you in an extremely protective manner, sweeping his gaze all around you. You can't blame him though, since not too long ago, a demon tried to swallow you whole. 

At the house, he continued his hold on you until inside of his room with the door shut.

"Listen up, MC! You'll be staying in my room from now on! No ifs, ands, or butts about it!"

"Mammon... What about my stuff?"

"We'll grab everything tomorrow."

"What about my pjs?"

"Well... uhhh... you can wear some of mine tonight. Okay?" He averts his gaze as his cheeks become dusted with pink. 

"Okay." Mammon starts shuffling through his belonging until he finds a clean shirt and a pair of sweatpants. 

"Here. Now hurry up and change, so we can go to bed! It's pretty late as is!", he tells you. He turns around to respect your privacy. You let him know when you're done putting on his clothes so the both of you can hop in bed. "Also, if you have to get up for ANY reason, you need to tell me. I don't care if it's to use the bathroom. I need to be there to keep you safe, as your first." You nod in agreement.

Shortly after the both of you fall asleep after a long night, he has his entire body wrapped around you. Mammon's protective of you, even in his sleep.