The day after Lucifer and Satan's switch, things were incredibly hectic. Both demons had tried to put on their normal uniform variations, only to be reminded that they were different demons, and thus were different sizes now. Satan(Lucifer) had spent a good hour arranging and rearranging Lucifer(Satan)'s uniform until it had the usual perfection he displayed in his own body. Lucifer(Satan) had been less than cooperative while getting ready, and all three of us had almost been late.

Unfortunately, that was only the beginning. At school, the two flip flopped demons remained in close proximity to one another as agreed, but Lucifer(Satan) and Mammon seemed to be doing a lot of side-eying one another, as well as muttering to each other under their breath. I did my best to ignore it, wanting to just get through this ordeal with as little fuss as possible. This was made nigh impossible when Satan(Lucifer) grabbed me in between classes and pulled me close to him.

"Isabella," he said, "I think you know this, but I don't trust those two one bit. Satan and Mammon both think this whole situation is funny, and it's possible that they might do something outrageous for comical effect."

"Oh I can all but guarantee it," I replied. "From what I've seen, Satan will do anything if he thinks it will piss you off or make you look bad, and Mammon's probably just looking to profit from your humiliation."

"That's exactly why I want you to keep an eye on them. If it looks like they're about to try anything they shouldn't-"

"Ehem," Mammon let out, tapping both me and Satan(Lucifer) on the shoulder. "You do realize that we're standin' right here."

"He wanted us to hear him, you dolt," Lucifer(Satan) informed him.

Thankfully, before anything could escalate, I saw a flash of red coming toward us.

"Diavolo's coming," I hissed.

All three demons stiffened as Diavolo came down the stairs towards us, giving all of us his usual warm smile.

"Hello there, Lucifer," he greeted.

Satan(Lucifer) nearly choked on his tongue, swallowing the greeting that he nearly returned on instinct. When Lucifer(Satan) didn't respond with the usual calm greeting he was used to, Diavolo's face grew a bit more serious. He crossed his arms and looked at Lucifer(Satan) with concern in his golden eyes.

"So, what happened this morning? You always stop by the assembly hall first thing in the morning, but you weren't there today."

I will admit, I swallowed hard, just knowing something was about to happen. Satan(Lucifer) seemed to share my dread, for he quickly and quietly hissed at his possessed body.

"Satan… you know what to do, right?"

"Yeah, yeah," Lucifer(Satan) hissed right back. "I think I can handle being a convincing you." His face then brightened into a big smile that looked so alien on Lucifer's face, and I felt my heart plummet into my stomach as he opened his mouth. "Hello, hello, hello, Diavolo! I'm so happy to see you! You're all I ever think about, honey. I dreamed about you again last night, and then I ended up oversleeping, which is why I wasn't at the assembly hall."

Mammon let out a noise that almost sounded like a strangled cat. He was covering his mouth with his hand and trying so hard not to laugh. He was visibly shaking from the effort, leaning against the wall as more barely concealed noises escaped his fingers. On the opposite end of the spectrum was Satan(Lucifer), who looked like he was ready to disembowel his own body. Rage was literally radiating off of him in waves, and I actually recoiled at it. As for me, I was just desperately looking for any means of escape from what I could only assume would soon become a viscous murder scene. Unfortunately, Lucifer(Satan) was far from done with his little show. He turned to Diavolo, looking upon the Future Demon King with mock concern.

"Diavolo, is it just me, or do you look tense? Want me to give you a nice shoulder massage? How about your arms? Maybe your legs too? If you're feeling tired, you just let me know, okay?"

Mammon was on the ground now, looking like he was having a seizure. I glanced over at Satan(Lucifer), half expecting to see him launching at his body with untold fury. Instead, some of the rage seemed to be giving way to mild concern. He turned to me, and in a quiet voice, whispered a question.

"Isabella, I'm not actually like that, am I? I can't honestly be that bad."

"I mean… you do seem to put a lot of emphasis on Diavolo and what he wants..." I hesitantly replied. "Not as bad as that, but… kinda?"

Thankfully, Diavolo seemed completely and utterly oblivious to the scene devolving around him. He didn't acknowledge Mammon's breakdown, or my private conversation with Satan(Lucifer). Instead, he seemed to genuinely take what Lucifer(Satan) said into consideration.

"I don't feel tense at all, or tired for that matter." He then cracked a smile. "So Satan, how exactly did you end up in Lucifer's body?"

You could have heard a pin drop. Even Mammon's fit stopped from the sheer shock of the bombshell that Diavolo had just dropped. We all just stared at the prince, who was smiling as if nothing was wrong.

"Wait… you knew?" I questioned once I finally regained my voice. "I mean, sure Satan laid it on thick but… how did you know it was Satan?"

"I know Lucifer," Diavolo said simply. "I also know his brothers well enough to know who would put on such a performance." He then turned to Satan(Lucifer), his smile never waning. "At least this explains your absence in the assembly hall, Lucifer."

Satan(Lucifer) was stunned, actually taking a step back.

"You… you can tell it's me?"

"Like I said, I know you, Lucifer. I've known you for a very long time. There's not a chance in the Three Realms I wouldn't recognize you."

"Damn," Lucifer(Satan) cursed through gritted teeth, crossing his arms and turning away.

"So, let's hear it," Diavolo commanded. "What happened?"

"To put it simply," I spoke up, "there was an incident with an enchanted book, one they both touched. It caused them to switch bodies, and this is the result. They had been hoping to keep it under wraps, especially from you, at least until the effects wore off."

"Guess that's blown out of the water," Mammon lamented, kicking his foot like a petulant child. "That seriously sucks..."

"I must admit, I never thought you'd see through the act so quickly," Satan(Lucifer) spoke up, smiling. "I underestimated you, Diavolo."

"How long until the effects wear off?" Diavolo questioned.

"A few days," I answered. "Unfortunately, we can't get a more specific date then that."

Diavolo's serious expression returned, the prince pressing his thumbnail against his bottom lip in contemplation.

"That's good to hear," he remarked, though he certainly didn't sound like it was. "However, I believe Lucifer is scheduled to give a speech to the entire student body the day after tomorrow. Is everything going to be alright with that?"

Satan(Lucifer) tensed again, his eyes becoming the size of dinner plates. Mammon hissed, turning to his brother and giving him a sympathetic pat on the back.

"Sorry, Lucifer. You're screwed."

…

After class was released, Satan(Lucifer) and I retreated outside to the RAD garden. Lucifer(Satan) broke off from us, citing a reference book he'd accidentally left behind. He retreated back inside, leaving me and the other possessed demon alone. Satan(Lucifer) was still completely hung up on what Diavolo had told him, and almost immediately plopped onto a bench, burying his face in his hands.

"The speech…" he groaned. "How could I have forgotten?"

"What speech?" I questioned, having heard nothing about a speech, or any big assembly. Granted, I had been particularly busy with everything that had happened in the last few weeks alone.

"I have to give a report to the full student body on the current state of the exchange program, and how all of our exchange students are doing. I'd planned to talk about Diavolo's plan to achieve harmony between angels, demons, and humans, calling for everyone to understand what he's trying to accomplish..." Satan(Lucifer) sighed and shook his head. "But if Satan and I are still in each others' bodies the day after tomorrow, he'll have to give the speech in my place."

"And after the display he put on for Diavolo, I highly doubt he'll be cooperative," I remarked. "He'll jump on the chance to ruin your reputation for good."

"Exactly," Satan(Lucifer) nodded. "Out of all of my brothers, Satan is the one who's most like me. Normally, I'd think he'd have no trouble handling a task like this. But this time… there's no telling what he'll do." He buried his face again. "What do I do? I mean, I can't very well go up there and give the speech in this body."

"Maybe..." I hesitated, then let out a long breath. "Maybe you should try and work things out with Satan. Talk to one another and see if you can't at least come to some sort of compromise. I'm not saying you'll solve all your problems, but maybe a civil conversation could at least stop him from actively sabotaging you."

Satan(Lucifer) lifted his head, meeting my eye.

"Are you certain that's wise?"

"Positive," I nodded. "You said it yourself, you're both surprisingly alike. If you spoke to him about this, maybe he'll understand where you're coming from. You'll never know until you try."

After a brief moment, Satan(Lucifer) straightened, giving a small nod.

"You're right. I can't simply decide that there's no way for us to understand each other. All I have to do is make an honest effort to attempt to reach common ground." At that moment, he seemed to notice just how much time had passed. "Isabella, I- I mean, Satan, has not returned from the classroom. There's no way it's taking him this long to reclaim a forgotten textbook."

"Uh oh..." I let out, a feeling of dread washing over me. "We better go find him."

"Agreed," Satan(Lucifer) nodded, grabbing my hand and leading me off.

…

As it turned out, Lucifer(Satan) had been intercepted by both Levi and Beel not long after reclaiming his textbook (which he actually had left behind surprisingly enough). They'd brought him back home, and by the time we found them, Lucifer(Satan) was in the midst of doing various impressions of the eldest brother. Powerless to stop his possessed body, Satan(Lucifer) could only watch in dismay. At the moment, all five of us were in my room. I'm not sure when my room just became the designated meeting place for demonic shenanigans, but here we were. I'd just returned from the bathroom after changing into my casual clothes, where Levi and Beel were urging Lucifer(Satan) to have some fun.

"Your impressions are good, but I'm kinda bored of them," Levi remarked, laying on his stomach on my rug while playing one of the many games he had on his D.D.D.

"You should try saying something the real Lucifer would never say," Beel suggested, munching on some popcorn.

"Oh this oughta be good," I deadpanned, sitting down on my bed and snagging some of Beel's popcorn.

Lucifer(Satan) mulled over it for a moment, then he snapped his fingers as an idea came to him. He put on the most exaggerated, lovesick puppy dog eyes I've ever seen, clasping his hands together.

"I'm in love with Ruri-chan! She's my baby!"

He then proceeded to squeal like a crazed teenager. Levi broke down into laughter as Beel let out a snort, nearly choking on his popcorn. I'll admit, I nearly did the same, but seeing Satan(Lucifer)'s crestfallen face made me lose my sense of humor. I scootched over towards him, giving him a concerned look.

"Hey," I told him. "Don't let them get to you."

"That's a bit too much to ask when they're right here, pulling this shenanigans in the same room as me," he lamented.

"And being the Avatar of Pride probably isn't helping," I added.

Satan(Lucifer) shook his head, then turned to Levi and Beel.

"Anyway, what are you two doing here in Belle's room?" he demanded.

"Well, Lucifer said-" Beel paused, shaking his head. "I mean Satan said that if I hung out here and made a bunch of noise, he'd give me treats."

"At least that explains where you got the popcorn," I commented. "What about you, Levi? Did Satan bribe you to come harass Lucifer too?"

"Just bored, Levi is," Levi answered in his Yoda impression. "Only reason for being here, mhm. Yes, the only reason it is."

I crossed my arms and cocked an eyebrow. That was all it took for Levi to cave.

"Actually, the truth is that there's this new game that was released, and I'm waiting for Akuzon to deliver it. I'm so excited, it's crazy."

"Well, at least one of you isn't here for the sole purpose of making my life unbearable..." Satan(Lucifer) grumbled.

Lucifer(Satan) just glared at Beel, no doubt angry that the gluttonous demon sold him out without even a second thought. Beel just ignored the angry glares, glancing around my room curiously.

"You know, I just noticed that Mammon isn't here," he commented.

"Huh," I let out, taking note of the exact same thing. "That's weird. He's been camping out in here pretty much nonstop since we got back from the retreat."

The two flip flopped demons both exchanged looks, a silent argument passing through them. Their expressions were grim, and it was clear that Mammon was the subject of a rather nasty spat between the two. Seeing the animosity between the two of them, I turned to Levi.

"Okay… did I miss something?"

"Well..." Levi let out, scootching closer and whispering loudly towards me. "I heard that Mammon and Satan hatched a plan last night to have a party with a bunch of succubi, taking advantage of the fact that Satan is in Lucifer's body."

I groaned, pinching the bridge of my nose.

"What happened..."

"Lucifer found out their plans and told them they couldn't go. Asmo ended up going in their place. He seemed pretty happy about it."

"Considering the alternative, letting Asmo go out partying was the less destructive option," Satan(Lucifer) remarked, shaking his head. "Unfortunately, even with my intervention with the part, Mammon is still taking advantage of my… current state… to run rampant, doing whatever he wants."

"You mean like how he went and brought the head of the RAD Newspaper Club to Satan after class?" Beel questioned.

"Wait, is THAT why he was so late getting his textbook?" I asked.

"Beel..." Lucifer(Satan) snarled like some sort of feral cat. "Shut. Up."

"Yep," Levi answered, basically ignoring the threat. "Satan pretended to be Lucifer and said that he'd increase funding for their club next year in exchange for a bribe!"

There was a dead silence, rage radiating not just from Lucifer's body, but Satan's as well. Satan(Lucifer) rose to his feet, turning to Beel with a cold, emotionless expression.

"Beel," he commanded, making the gluttonous demon straighten instinctively. "I want you to go find Mammon and string him up for me. Hang him upside down."

"Me?" Beel questioned, pointing at himself and looking nervous and upset at the suggestion. "Um… I understand that you can't boss Mammon around right now since you're in Satan's body, but still-"

"I'll give you a hundred dozen Uncle Demon's donuts as a reward for doing this," Satan(Lucifer) offered without even a moment of hesitation.

"Deal!"

Beel hopped to his feet, dumping the last of his popcorn into his mouth, ate the carton for good measure, then took off out of my room. We all watched him go, then Lucifer(Satan) glanced at his possessed body with a smug smirk.

"So, you're going to hang Mammon upside down, huh? Okay then. What about me? I know you want to punish me, but surely you can't hang your own body upside down now, can you Lucifer?"

"Don't be so smug, Satan," Satan(Lucifer) warned.

"I'm Lucifer, not Satan," Lucifer(Satan) sneered. "And you really should be more respectful towards your older brother, you know."

"Oh brother..." I groaned, falling back on my bed. "I can't believe I'm about to say this, but I think this entire ordeal has made their fighting even worse..."

"Maybe so, but it's pretty funny," Levi remarked, kicking his feet in the air idly.

...

Unfortunately for me, things didn't get much better after that. As nighttime rolled around, the two flip flopped demons were still arguing like there was no tomorrow. At the moment, the topic up for debate was the use of my bed.

"Right now, I'm the oldest," Lucifer(Satan) declared. "Naturally, I get to use the bed."

"Wrong," Satan(Lucifer) retorted. "I'm Lucifer, not you. So, I'll be using the bed, of course. You can sleep on the floor."

"I'm taking the bed."

"No you're not, I am."

"Ugh..." I groaned. "This is giving me a headache. It's my bed, so I should be the one to sleep in the bed."

"But I-" both tried to argue before I cut them off.

"No, it's my room, and my bed. Both of you can sleep on the floor like you did last night." I turned off the lights, climbed into my bed, and threw the covers over my head. "Now with you go to sleep for the love of-" I stopped, then just groaned again. "Just go to sleep!"

There was a moment of silence, then I could thankfully see the two demons crawling into the sleeping bags they had been using last night. I rolled over so my back was to them, just praying that this ordeal would soon be over.

...

I had hoped that this would be the end of the bickering for the night, but I was soon proven wrong. Both Lucifer and Satan talked in their sleep, the former cursing his brother and swearing vengeance on him while the latter continued his power-mad rant.

"I'll make you… pay for this… satan… when I'm back in… my own body..." Satan(Lucifer) muttered in between snores.

"I'm- I'm Lucifer..." Lucifer(Satan) sleepily declared. "All you demons… kneel before me..."

I tried burying myself in my covers and even throwing my pillow over my head, but nothing I did could drown out the two demons sleeping on my floor. Soon, I just threw my covers off and just got out of bed. I tiptoed around the two, then made my way out into the hall. I closed the door, yawning wide before trying to figure out what the heck I was gonna do. I contemplated seeing if I could crash in Beel's room, then I heard a noise from further down the hallway. It sounded like crying, very pathetic crying. Curious, I began to follow the noise.

I eventually found the source in the stairwell, where Mammon was hanging from one of the banisters. He was tied up very efficiently, making him look like a larva trapped in a cocoon of rope.

"Mammon?" I called out sleepily.

With a sniff, Mammon wriggled himself until he was looking down at me, tears dripping down his face.

"Belle! Please, you gotta help me! Lucifer made Beel string me up and-"

"I know, I know," I interjected. "I was there when he promised Beel a hundred dozen donuts to do it. Although, I distinctly remember him asking for you to be hung upside down, and you are very much right side up."

"I bribed him with some gum to not do the upside down bit..." Mammon made a show of wriggling in his cocoon, trying to break free. Unfortunately, the ropes didn't even budge. "Even so, he's too damn strong. These ropes are so tight that I can't manage to break free no matter how hard I try… Please help me..."

"Not a chance," I shot down. "Not only would Lucifer kill me once he's back to normal, but you clearly haven't learned your lesson. You shouldn't toy with Lucifer like that, and you really shouldn't try and make him look bad. He's the Avatar of Pride after all, and your jokes are just going too far."

"I have learned my lesson!" Mammon sobbed. "I'll never do it again, I swear! So please, just let me down! If you don't, I'll be hanging here for the next 500 years! And that's if I'm lucky!"

I sighed.

"Well, that does seem a bit excessive..." I mulled it over for a bit, then smirked as an idea hit me. "Alright. I'll let you down. BUT, in exchange, you have to help me convince Satan and Lucifer to make nice."

Mammon stopped squirming, looking down at me like I was insane. I probably was, given the literal centuries of fighting and hatred I was trying to resolve, but something had to be done before this entire family ended up tearing itself apart.

"Belle, listen to me. I don't know what you're trying to accomplish, but Satan and Lucifer have been at each other's throats from the beginning. I mean, I guess you could say it's only Satan that hates Lucifer, but it's like..." Mammon paused for a minute, trying to find the right words. "Like Lucifer doesn't give a flip about how Satan feels, which makes Satan even angier, so-"

"So that's a no." I turn on my heels and prepare to walk away. "See you in 500 years, I guess."

"Wait!" Mammon cried out, redoubling his efforts to get free of his ropes. "Don't leave! I'll help you! I'll do it! I promise! Just get me down from here!"

I smirked, looking at the distance between Mammon and the ground. I then stepped back, and covered my ears.

"Mammon, stay!"

The pact activated, a golden glow appearing amidst his rope prison. The rope holding him snapped, and he fell hard. He screamed as he did, then came crashing down hard onto the floor below. I then made my way down the stairs to where Mammon had fallen, and began untying him.

"Did you have to get me down like that?" Mammon groaned. "That really hurt."

"Even if I did release you from the banister some other way, you still would have dropped. This was just faster. Now hold still. These knots are tricky."

Mammon grumbled, but laid there as I worked on the knots holding him. After several minutes, and more than a few muttered curses on my part, I finally managed to fully free the greedy demon. He got up and stretched, smiling widely as he enjoyed his newly regained freedom.

"Aaaah," he sighed in contentment. "My feet are back on the floor where they belong. Excellent."

"Don't go forgetting your promise now," I warned. "Otherwise, I'll just call Beel and have him put you back on the banister."

"Whoa, whoa," Mammon insisted, holding up his hands. "Ease up there, Belle. I ain't forgotten. No need to threaten me like that. I said I'd help ya get them ta make up, and I'm a demon of my word."

I nearly choked on a laugh, knowing that was the farthest thing from the case, but Mammon didn't seem to notice. He seemed to contemplate my dilemma, giving it some genuine thought.

"Alright, let's see now..." he snapped his fingers, then grinned. "I got it! I have the perfect idea! I'm a genius!"

I looked at Mammon, taking note of his excited face. I felt my stomach churn a bit, and I winced with growing dread.

"I've got a very, very, bad feeling about this..."