Hello there! This is RWOL here doing a chapter for KatHotelz's Ah My Goddess What If story collection. This 'chapter' answers the what-if question; what if Keiichi is a demon? Now this will have some elements from other anime to make it work. The Great War bit comes from Highschool DxD. Keiichi's demon title comes from Transformers. The Super Demon bit comes from Digimon and it also has ties with the Super Devil from Highschool DxD. The Second Greatest Power comes from Judaism where Metatron the Scribe of Heaven is the second most powerful being the universe, being second only to God and is seen as the Second Greatest Power in Heaven.

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"Hm? What shall we ask the What-If Machine this time?" Urd asked the group. Keiichi and Belldandy had been given the next three days off due to a holiday so it was a chance for the two to relax since among the group they worked the hardest. "I'm kinda of drawing a blank on what to ask since I asked all the important ones already." Urd sighed a bit frustrated that she couldn't think of an interesting question.

"I too must admit that I am having a hard time trying to figure out what to ask." Lind admitted rubbing her chin.

"Why don't we use the random question feature of the machine?" Chrono suggested. "It's clear we're all drawing blanks on what to ask so why not just watch random scenarios until one of us has a question to ask." she elaborated.

"I down with it." Keiichi said. "It would be interesting to see what scenarios are played and how those versions of ourselves handle the situations."

"I agree as well. The few random scenarios we watched were the most interesting so why not a few more." Belldandy said with her usual serene smile. "Are we in accordance?" she asked getting nods from everyone. "Okay then What-If Machine please show us a random question." she told the machine.

The TV went static for several moments before the one question popped up that honestly sacred them, the Goddesses moreso (specifically Lind, Chrono, Urd, Skuld and Peroth due to the Demon-Belldandy scenarios). Belldandy gasped as she unknowingly tightened her grip on Keiichi who was stock still in shock and horror.

What if Keiichi Morisato was a demon?

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Keiichi released a yawn as he came back into the realm of the awake from a restful night's sleep. Releasing another yawn and fully waking up he merely laid there knowing he wouldn't be getting up due to his wife holding him down, snuggling him. He looked down and couldn't help but smile as he took in his beautiful wife. Pure, moon-silver hair that when not in her normal style cascaded down to her shapely hips like a waterfall. Her dark skin was like the finest and smoothest of chocolate molded into the perfection of her feminine form. Her face was lovely too, with sculpted cheekbones, a long, sleek nose, a strong chin that made her face perfect. Her red facial markings, taking the shape of stars, only served to enhance her natural beauty.

His left hand moved and he began to gently running his fingers through the moon-silver tresses of his beautiful wife. Keiichi smiled as he heard his wife murmur cutely, nuzzling her cheek against his chest as she snuggled closer to him. The woman murmured a bit more before leaving her sweet dreams and entering the land of the awake once again. Lifting her head and blinking the sleep out of her eyes, she yawned cutely before looking at her husband through half-lidded eyes.

"Mm. Good morning Keiichi." The woman said resting her head back on her husband's defined chest.

"Good morning Hild." Keiichi returned to his wife as he wrapped his arms around her and held her tightly. Hild snuggled her husband, sensually rubbing her buxom body against her husband

.

"I wish we could just stay like this the rest of the day Kei." Hild said just wanting to be lazy and not go into work. Being the second most powerful demon in Hell was hard work especially since she married the Second Daimakaichō whose strength was actually on par with that the Great Demon God Satan – the first demon in existence and known as the Father of All Demons. When the Great War between Heaven and Hell ended with the deaths of Satan and God, Keiichi took control of Hell and managed to strike the peace accord with Heaven to end the war.

Keiichi was the only demon who did what many believed was impossible; he equaled Satan in power and proved to be Hell's greatest warrior and general. He is a tactical genius who as Hell's Supreme Commander led campaign after successful campaign against Heaven; bringing victory for Hell time and again and handing Heaven decisive losses time and again. He is a master combatant; being an unrivaled grandmaster in all forms of combat; both armed and unarmed. In fact, Keiichi is credited with the creation of Demon Arts; the system of combat all demons use even now which is taught at the Meggido Academy that Keiichi founded so demons could have proper training. His strength is so colossal that he singlehandedly slaughtered ONE million of Heaven's strongest warriors in three days and nights.

He was seen as Hell's Second Greatest Power and because of that Satan gifted Keiichi with the title of Ultimate God of Destruction (究極破壊神 Kyūkyoku Hakaijin).

As such all demons knew that Hell would be in good hands with Keiichi as the Daimakaichō.

Keiichi gave his wife a smirk before retorting; "If we did that then it would lead to us spending a week in bed doing nothing but having raunchy sex."

Hild gave Keiichi and sultry smile. "And what if I want Big Daddy Kei to screw me for a week until I'm in a sexual coma?" she asked her smile turning lecherous.

"Well then let Big Daddy Kei erect a time dilation barrier before he gives you the sex." Keiichi said erecting the time dilation barrier in their bed chamber before giving his loving wife the sex. One raunchy, six hour romp (which was only thirty minutes in the real world due to the time dilation barrier) in the sack later, Keiichi and Hild left their room after taking a refreshing shower and headed to the kitchen for breakfast passing the palace servants who bowed to their lord and lady before going back to work in keeping the palace in tiptop condition.

"Morning Urd. Morning Mara." Keiichi said cheerily to his only daughter and her lover as he sat down. Hild took her customary seat next to him at the head of the table as she gave her morning greetings to her daughter and 'daughter-in-law'.

"Morning dad, mom." Urd said after taking a sip of her morning coffee.

"Good morning Keiichi-sama. Hild-sama." Mara said respectfully with a servile nod of her head.

Urd merely rolled her eyes at her lover. "Come now Mara you call my dad by his name you know. He won't get mad."

"She can call me father if she wants." Keiichi said as the servants brought breakfast. "I mean she is practically my daughter-in-law." He said with a teasing smirk to the two as his daughter gave an indignant shout of 'DAD!' while Mara was blushed up a storm and Hild laughed.

"By the way, have you two finally decided on who's the husband and who's the wife?" Hild said getting on the teasing action. Urd turned her indignant glare to her mother while her lover was inventing new shades of red.

"Oh come now Urd we're merely teasing so there's no need to get bent out of shape about it." Hild said waving off her daughter's glare before eating her breakfast.

Urd grumbled even as she ate her own breakfast with her lover Mara right behind her. Keiichi just smiled as he enjoyed this time spent with his family. This was just one of the reasons why he enjoyed this relative peace because he didn't want Urd and the younger demons to grow up in the times of chaos and strife that dominated most of the past between Heaven and Hell. It had been one of the reasons why he had Hild had waited so long in having children. So when the peace accord was struck and he fully got settled in as Daimakaichō (which took a 1000 years given some of the problems Hell had due to the war and afterward), they had immediately begun planning for their first child. A century later they had Urd.

Maybe we should try for another child? Keiichi thought since it had been 8000 years since Urd's birth.

I'll talk to Hild sometime later about it. Keiichi thought as he continued eating. When they finished breakfast, the four went about their daily routines; Keiichi ruling Hell, Hild being his government administrator, Urd and Mara bringing in contracts for Hell.

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The Daimakaichō carefully went over the today's paper, making sure he didn't even the minutest of details so that said details didn't bring ruin to his realm. After ruling this realm for the last 9000 years he wasn't about to change anything in his work routine. His paperwork included the normal things; finances, various projects, and wish quotas his demons were filling. Seeing that this month's quota was being met, Keiichi smiled as he knocked out the rest of his paperwork. About a few hours later, Keiichi had his feet up on the desk as he leaned back in his posh chair resting his head on his hands.

"As efficient as usual my love." Hild said entering her husband's office carrying lunch from a deli from earth. The buxom demoness made her over to Keiichi's desk, setting the bag down and continued on as Keiichi repositioned himself knowing his wife wanted to sit in his lap. Which Hild did when finally made her way to him, where he wrapped his arms around her body and Hild snuggled him.

"Any problems today Hild?" Keiichi asked his wife.

"Nothing major. Though there were a couple of Djinns trying to make some trouble but I quickly put a stop to that and sealed them away as punishment." Hild said wrapping her left around his neck. Keiichi nodded as reached for the bag, revealing that Hild got two large deli platters along with a three-liter Jolly Rancher Peach drink. "Also Mokkurkalfi wants to speak with you about the system. I think it's about the upgrade she's been touting about lately." Hild said accepting one of the sandwich sections.

"I've already arranged a meeting with her three days from now." Keiichi said after taking a bit of his sandwich. "Though given how messy she is with her paperwork and how she gets into her work she may forget and be surprised about my visit." He said getting a nod from Hild about Mokkurkalfi's habits.

"True but she has been responsible for many of the advances Hell has now and why we're ahead of Heaven when it comes to wishes and contracts."

"Which causes me to thank the unholy that I followed my gut and took her and the others in as my students 2100 years ago."

"Please don't remind me of that dear. Especially since I have to deal with that little cunt Hagall."

Sigh. "Hild-baby you need to relax. In our 1000+ year marriage, I have always been faithful to you. Why? Because no woman be they human, goddess or demoness will ever compare to you. Not now. Not ever."

Sniff. "WAAH! Kei-kun you always know what to say!" Hild sniffled as she tightly hugged her husband. Keiichi smiled as he hugged her back, relishing in the feeling of her love and her sexy body against his own.

"Keiichi-sama! Keiichi-sama!"

Keiichi broke the hug with his wife to see his fanatically loyal fangirl Hagall rush into the office holding a data disk bearing the crest of Heaven.

The young demoness quickly composed herself and kneeled before her beloved lord and master, expertly ignoring the woman (a term she used loosely as in Hagall's mind Hild was unworthy of Keiichi's love) sitting on his lap.

"What is the meaning of this Hagall? And why do you have a Heavenly data disk?" Keiichi asked in his general's voice.

Hagall lowered herself even more in her kneeling position, making her look like the perfect servile demon. "Keiichi-sama I'm deeply sorry for the intrusion but this data disk from Heaven came here by way of the Valkyrie Commander Lind herself! She claimed it held an important message from the Daitenkaichō himself!" Hagall said presenting the disk but not rising from her kneeling position.

Hild had quickly moved, taking the data disk and handing it to her husband who activated his built-in laptop and putting the disk in the player. After a few seconds the disk started to play, bringing up the text message the Daitenkaichō sent him. By the end of the Keiichi was deathly silent before he stood and began to leave.

"Hild you're in charge while I'm gone. Hagall follow Hild's orders as if they were my own." Keiichi ordered shifting to his old General persona as he left dressed in his armor and robes. Both Hild and Hagall felt a shiver of fear and wondered exactly what set off their leader. Sitting in his chair, Hild read the message and was left gaping in shock at she just read.

No wonder Keiichi left in a hurry! This is big and will probably upset the fragile balance we managed to maintain! Shit! Hild thought in worry. She also had to wonder exactly how this happened and why they're only hearing about it now.

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"Ah. Thank you for meeting with me on such short notice Keiichi-dono." The Daitenkaichō said in a cordial tone seeing Keiichi in his ceremonial armor and robes. (Think of Sirzechs Lucifer from Highschool DxD)

"Let's dispense with the pleasantries Tyr. How in the nine circles of my realm did this happen? Why I am learning about such a thing now?" Keiichi demanded. This was something that has never happened before and Keiichi needed all the facts before making a decision.

Tyr sighed before beginning to explain the situation. "That I'm still trying to figure out my fellow leader. As you know the Doublet System was put in place in order to reduce confrontations between our forces."

"Yes a demon/demoness and a god/goddess will be randomly paired together in the system, being bound to each other so to create a duality between them. This also makes it impossible for them to attack and kill the other." Keiichi said wondering where this was going. "Once paired then the two will have their memories sealed. And only you and I have the knowledge of each paired demon/goddess and demoness/god."

"But that Keiichi is problem. The demon and goddess in question didn't have their memories sealed." Tyr revealed shocking Keiichi. The Daimakaichō quickly realized what happened.

"They managed to circumvent the system!" Keiichi exclaimed. "But… how? More importantly why?!"

Tyr sighed, rubbing his forehead before answering. "Simple Keiichi. They fell in love."

"You have got to be kidding me!"

"I wish I was Keiichi. I wish I was but I'm not." Tyr sighed. "The two fell in love and so concocted this plan that would allow them to remember each other. They then started secretly dating for several centuries before the demon asked the goddess to marry him and which she agreed to." Tyr began explaining. "They had a private human ceremony and now we, the gods and goddesses of Heaven have learned of the goddess carrying a hybrid child."

"How did you find that out?"

"The goddess in question works at the Goddess Relief Hotline. She had a fainting spell that caused some panic as she rushed to the infirmary. It was here that Apollo told the goddess of her pregnancy. Sometime later she 'escaped' and met up with her demon husband. Though the goddess didn't know that her younger sister had her robotic drone Banpei follow her and record the conversation. That is how we found out." Tyr finished.

"Who is the demon and goddess responsible for this mess we have to deal with." Keiichi asked wanting to know about the ones who created this mess.

"The demon in question is Welsper…"

"Please don't tell me that his wife is…" Keiichi groaned, face palming himself now knowing just how FUBAR this clusterfuck really is.

Tyr nodded grimly, a rare look of anger on his normally serene and peaceful face. "Yes. The goddess in question is my own daughter Belldandy."

"FUCKING SHIT!"

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"Welsper…" Keiichi began.

"Belldandy…" Tyr said.

The two leaders of Heaven and Hell were standing before Welsper and his wife Belldandy, both of whom were nervous and afraid. Their relationship was now publicly known along with their actions of circumventing the system so they could be together. Then there was Belldandy's pregnancy; in nine months' time she would give birth to the first hybrid of demon and god.

"The two of you know why you are here." The two leaders spoke as one.

Welsper nodded, a grim look on his face. "Yes milords, we do. And while we do not regret our actions please do not take your anger out on our child. It is an innocent in this situation."

"Calm yourself Welsper." Keiichi spoke to his subordinate. "After a long discussion between Tyr and myself it was agreed upon that no harm shall come to your child."

"Yes harming an innocent child, despite its status as a hybrid, is a move that is both petty and beneath us." Tyr said in a cold, neutral tone that had Belldandy flinching. She could feel his disappointment towards her in his voice.

"While your child will remain unharmed the two of you must still punished for your actions." Keiichi spoke crossing his arms. "And your punishment is this…"

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The screen went blank as the stunned group tried to process what they had just watched. Which took about thirty minutes as the scenario was one that was arguably the most shocking they will ever see.

"So let me get this straight," Keiichi began and getting everyone's attention. "In this scenario I'm a demon on par with Satan himself, the second Daimakaichō, Hild is my wife, Urd is my daughter, Mara is Urd's lover, Hagall is my fanatically loyal fangirl who wants me, and Belldandy is secretly married to Welsper and both are expecting a child." Keiichi listed off. "WHAT THE FUCK!" he screamed coming close to pulling his hair.

"KEIICHI! Language!" Belldandy admonished her beloved. Keiichi gave Belldandy a WTF look, wondering why she was admonishing him on his language.

"Look Belldandy I think Keiichi has every right to curse about what we just saw." Urd said still trying to come to terms that in the scenario Keiichi is married to her mother Hild and she's their daughter with her childhood friend Mara as her lover. Seriously she never imagined anything like that in any scenario. Hell she'd prefer the one where SHE'S the one pregnant with Keiichi's child. At least that one she could accept because it was within the realm of possibility (If they had a drunken one night stand and she ended up pregnant) but this she just really couldn't accept.

"I must admit that it wasn't as bad as I thought it would be." Lind admitted honestly. "But it seems that things are far more different than I imagined. With Keiichi being the Daimakaichō and Hild's husband, this means that Hild never had a relationship with the Daitenkaichō meaning that Urd isn't a hybrid." Lind said doing a quick compare and contrast. "Instead the hybrid in that scenario is the soon-to-be child of Belldandy and Welsper, who have been secretly married for several centuries." She said looking at the shell shocked demon in a female cat's body.

"I am still most curious about how Welsper hacked the system the first time." Chrono said looking at the trapped demon whose mind had effectively shut down. "I am also curious about the punishment that this version of Welsper and Belldandy will receive."

"Big sis… and Welsper… together…having a child…" Skuld said trying desperately to comprehend what she saw and heard. "THIS IS BULLSHIT!" the young goddess cursed.

"SKULD!" Belldandy shouted to her younger sister for using foul language.

"NO! I can barely accept you being with Keiichi but you being this transgender cat demon I can't and won't accept!" Skuld shouted to her beloved older sister.

"SKULD!" this time it was Urd who shouted. "Calm down! It's just a scenario of what might have been if Keiichi was a demon. But thankfully he's not so just deal with it." Urd said getting her younger sister to pout while crossing her arms and huffing.

"Look Bell what are your thoughts on this?" Peorth asked her rival. "I mean we saw the man you love with another woman (along with the raunchy sex scene that left my panties soaked and so jealous of you if this Keiichi can really do such things), your half-sister as his daughter and you in a relationship with another man carrying his child."

Belldandy frowned as gathered her thoughts. "I'll admit that this scenario surprised me but it is just a scenario. Nothing more. There is a reason why they're called What-if scenarios." She rationalized. Though the others could see she was having trouble trying to accept what she saw. "Why don't we end today and head to bed early okay." She suggested barely able to hide her strained smile.

The others agree only because they could see that Belldandy wanted some time to process the scenario

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Abandoned Arcade

"Uh... WHAT THE FUCK!" Mara shouted after her brain finally rebooted from trying to process the recent scenario. "Keiichi a demon, I can probably see and even accept... but him as the mother fucking Daimakaichō..." Mara couldn't even find the words to explain how she felt about this. "He even has Hild-sama as his wife and..." she went beet red when she recalled the raunchy sex scene between the two which left the demoness hot and bothered and needing either a cold shower or her fingers doing the five finger shuffle during her alone time.

"Truly this is one surprising scenario." Mokkurkalfi mused tilting her head as she thought about. "It is within the realm of possibility for a Demon-Keiichi scenario to have played out and this is just one of the many routes for the scenario to take. I wonder what other routes there are for this scenario?" the demonic scientist pondered.

"What do you mean by routes? And why are you so curious about this scenario?" Mara asked her fellow demoness curiously.

"The main reason What-If machines are banned is due to them actually serving as 'portals' into alternate universes." Mokkurkalfi revealed to the stunned Mara. "There is a theory known as the Multiverse Theory that states there is an infinite number of universes based on every known and unknown possibility. It was discovered that the What-If machines allowed people to see into these universes because of the theory." the demon scientist elaborated.

"Wait," Mara said as she digested what she was told. "You mean to say that this machine actually allows us to view alternate universes and that there is a universe where Keiichi is a demon and ruler of us?! So that means..."

Mokkurkalfi nodded her head as Mara accepted the reality of their actions. "Yes. All those scenarios we watched so far are in fact alternate universes in the Multiverse. As for what I meant about the routes... think of those visual novels that human nerds play so much. They offer multiple paths throughout the game and it depends on the specific choices you make that effect not only the game play but also the endings you reach when you finish one of the paths." she explained to Mara who nodded in understanding. "Though thinking about it, there are only two paths I see for the Demon-Keiichi scenario: the one we just saw where he's the Daimakaichō and one where's he's a regular demon under Hild-sama's command. Though for that one I wonder what his class will be."

"Meh. He'll probably be a Third-Class since he's too spineless." Mara chuckled to herself at the thought of bossing Keiichi around since she's a First-Class.

"Mmm." Mini-Hild said.

"Hild-sama?" Mara questioned.

A universe where I'm married to Keiichi who's the Daimakaichō, and I have my daughter on my side. Hild in her mini-form mused to herself. "I want to see more of this scenario later on."