Author Note: Hello everybody! I'm starting off this story for ReaperTheFifth. I am also obsessed with the anime Beelzebub, and after reading this fanfic and hearing about ReaperTheFifth deleting this story, I've decided to continue this story for all of you readers out there. Anyway, I don't own the OC Kaito, the character belongs to ReaperTheFifth.

It all started out like it usually did. Kaito woke up, got ready, and trudged sluggishly to school. Along the way, she met up with Furuichi and walked to school together. At the school, they waited in the courtyard for Tatsumi as he had yet to arrive, but that was typical of her fist-happy moron of a boyfriend.

Now you're probably thinking. "Why would any normal girl want to be that ogre's girlfriend?" Well, I'll let you in on a little secret: Kaito is not just any normal girl. Kaito Satoshi, a tomboy skater-girl who just so happens to be in love with Oga Tatsumi and is currently the only girl attending Ishiyama High. Don't ask her why. All she knows is that all of Ishiyama's female students (herself excluded) are on some sort of trip with Ishiyama's queen. And as for her name, yes, Kaito is not a girl's name, but her parents had been expecting another boy, and they already had a name picked out, so they decided to keep it.

The boys at the school leave her alone for the most part, but there were a few of those who strayed. Tatsumi usually took care of them unless they caught her alone, but then, she would use her epic running skills (It's not the same as running away!) to evade them. It's not that she can't fight back or anything, it's just that, being a passive person, she prefers to avoid getting into fights when she can. Well, there's that and Tatsumi throws a fit if Kaito ended up getting hurt. Honestly, she didn't see what the big deal was. A few cuts and bruises here and there is nothing. It's not like she hasn't had worse.

"Kai-chan!" Furuichi yelled, trying to get her attention even though she was right next to him.

"What?" Kaito answered.

"Look over there!"

Oh, look another fight broke out. How exciting. That was sarcasm in case you didn't catch that. "So which idiots is it this time?" She asked.

"It's Killing Machine Abe and Oga!"

Kaito raised an eyebrow, not even caring that she had just insulted her boyfriend. Don't get her wrong, she loves him and all, but sometimes he could be a little dense. "Now this I gotta see."

She'd always enjoyed watching him fight. It was one of her biggest turn ons, second only to seeing him shirtless. Not that she'd ever admit that to anyone. Luckily, with her awesome dodging skills, she and Furuichi made it to the front of the crowd where, lo and behold, was none other than her boyfriend about to fight some bald dude. However, that is not what captured her attention. Sitting on top of Tatsumi's head was a green-haired baby who was using his head as a urinal. She couldn't help herself and ended up laughing. Tatsumi sent her a weak glare before admonishing the infant. The Abe dude grabbed the baby and Tatsumi seemed a little freaked. Then all of sudden, the green-haired baby started to cry. Kaito crouched down and covered her head with her hands as lightning sprouted from the not-so-normal child.

On the roof, Kaito sat next to Furuichi as Tatsumi began explaining how he came to acquire the strange baby.

"Once upon a time, in a land far away, there was a handsome, cool, and popular young man everyone looked up to. The kind hearted young man said, 'Everyone grovel before me!'"

"Hold it. Hold it." Furuichi interrupted Tatsumi.

"Hmm?"

"Don't 'hmm' me! Who's kind hearted and popular again? And what the hell is with the baby, huh?"

"Silly little Furuichi, that's what I was getting around to telling you." Tatsumi grabbed Furuichi in what appeared to be a painful grip. "Break my train of thought, and I'll break your back! Now listen up!"

Kaito sighed at their antics. Boys. But they're her boys, so she couldn't really say anything.

Tatsumi continued with his tale. "The kind hearted young man went to do some washing up in the river. And then, from upstream, a big guy came floating, floating down the river."

"Okay, stop! Where are you going with this story, and what the hell do you mean, a 'big guy'?" Furuichi asked.

"He floated down the river! What can I say?"

"'Big guys' don't float down rivers, damn it!"

"Well, it was definitely was quite shocking. Actually, all the other dudes turned and ran the second they saw him."

"Well, duh!"

Tatsumi ignored him and went on with the story. "But the kind hearted young man was not taken aback in fear, and all by himself, lifted the big guy out of the river! And then split him in half. From inside, a spirited baby boy-"

"You split him?!"

"The young man said, 'Oh, what a cute baby!' The kind hearted young man stayed calm and responded to the situation like an adult. After that, the baby got totally attached to me. Or so it seems."

"Enough already! Who the hell would believe that story?" Kaito stood and brushed her pants off. Tatsumi turned towards her. "Ah, Kaito what do you think?"

"Well, I doubt you would be able to come up with a story that, uh, creative on your own. No offense." Kaito said.

Tatsumi just shrugged and Furuichi's jaw dropped. "You can't honestly tell me that you believe this crap!"

"I admit, it is quite farfetched, but after seeing what this kid did earlier, I'd be surprised if Tatsumi didn't find this baby in some weird way."

Kaito walked over to Tatsumi and held her hand out to the baby. She was a little startled that he had placed his tiny hand in hers. From what she'd seen, he didn't like anyone else but Tatsumi. The baby held out his arms to her. She knew that he wanted her to carry him but she was a bit wary to do so, but he became insistent, waving his arms around frantically. She hesitantly grabbed him and pulled him into her arms. Tatsumi looked at her in horror. Guess he had been expecting the same thing she had.

"Kaito-" He was cut off by the baby's gurgles of happiness in having gotten what he wanted. The small child snuggled into her chest. Tatsumi seemed a little annoyed all of a sudden and glared at the baby. The baby in response gave him the same look. "Oi, brat, what do you think you're doing? Kaito's boobs are mine!"

She blushed at Tatsumi's claim over her breasts. Most girls would be pissed to hear such a display of verbal pervertedness towards them, but not her. Let's not forget, she's known both Tatsumi and Furuichi for about half of her life so far.

"What did I just say, you brat?"

It wasn't until she saw Tatsumi's very irritated face that she realized that the infant she had cradled in her arms had managed to unbutton a couple of her uniform shirt's buttons, exposing her black lace bra while placing his hands on her chest. She blushed again, but this time it was much worse than before.

Tatsumi grabbed the baby and gave him one of his famous glares which only served to amuse the child. Furuichi, on the other hand, though he would never actually try anything, was very pleased with the sight given to him.

Kaito quickly turned away and re-button her shirt. "Well, we should get going or something. I'm getting bored up here."

The boys followed her example and made their way to the exit. As they were walking down the hall, two guys were arguing really loudly and were about to fight. Tatsumi, knowing the noise would make the baby cry again tried to make the two shut up, but to no avail. He cried again and Kaito felt the shock of it, though not as much as the boys because she had wisely chosen to step back a few feet.

In the classroom, everyone seemed wary of the four of them. Kaito felt sorry for the boy she loved; both he and Furuichi looked like they'd been burned to a crisp. The baby had attached himself to her chest again, but Tatsumi seemed too tired to care at the moment.

"Anyway, all we can do for now is keep him distracted." Tatsumi stated.

"'We' my ass! Don't go mixing me up in this!" Furuichi shouted with a glare on his burnt face.

"Whatever, just hurry up and search! Find something that can grab this kid's heart."

"As if! This is Ishiyama High, the worst school in the entire country! We're 120% Grade A delinquents!"

One of the other guy's shouts startled the baby; Tatsumi immediately took him away from his girlfriend. "Kaito, get out of the room! Do something Furuichi!"

She hesitated a bit before running out of the room. She had just barely made out as when she closed the door behind her, a large explosion came from within.

"My body can't take much more of this."

Taking pity on her boyfriend, Kaito had offered to carry abnormal child earlier since she was the only other person he'd allow to carry him without electrocuting them.

"There's only one thing left to do. Put him to sleep and stick him back inside the big guy before he wakes up!" Tatsumi said.

"The big guy's still split open? I mean, I don't think we can just ditch 'im." Furuichi said.

"Furuichi, you idiot! Do I look like such a cruel person?" He asked, promptly smacking Furuichi back several feet through the air.

The "bell," if you could call it that, rung, signaling the start of lunch. Tatsumi suddenly got the bright idea to feed the baby until he got so full that he fell asleep. Kaito wanted to tell him that a baby can't eat the same things we can and that, unless they had milk, his plan wouldn't work.

Unfortunately before she could relay this information to him, the green-haired boy left her arms. "Eh?" The boys noticed she no longer carried the small child.

"Over there!" Sure enough, where Furuichi had pointed, was the baby holding the last of the yakisoba bread. He threw it (amazingly far for a child) and watched delighted at the chaos it caused. "Hey, Oga, Kai-chan, do you think the baby is... happy?"

She tilted her head, examining the baby's excited expression. "What the hell is this baby?"

"Listen up, Furuichi. This might be to our benefit." Tatsumi said.

"Wait, why are we at Kai-chan's house?" Furuichi wondered.

"Once upon a time there was a fine young lumberjack."

"Hold it! That joke is old now!"

"The young man threw his axe into a lake, and the spirit of the lake appeared and said, 'Was it this old axe you threw in the lake? Or was it this golden baby?"

"Yeah, I saw that one a mile away." Furuichi muttered.

"Here! Have a golden baby!" Tatsumi shouted as he tried to give his friend the baby

"I ain't taking that thing!"

Kaito had a sweat drop on the side of her head as the boys started their antics again. She calmly walked over to Tatsumi and plucked the baby out of his grasp. Positioning him correctly in her arms, she sat down on the bed. "If you're going to do that, at least put him down first or else you'll hurt him."

She started cooing at the baby and he made excited noises, enjoying the attention she gave him. The boys looked surprised at her interaction with the adorable child.

Then, he squeezed her breasts. Tatsumi grabbed him with a pissed off look on his face. "I've already told you once, kid. DON'T TOUCH HER BOOBS! If you seriously make me mad, I'll show you the pits of hell!"

The baby got excited again and rubbed his cheek affectionately against Tatsumi's, causing Kaito to giggle lightly. She stopped immediately when she sees a figure right outside the window.

"Guys, he's totally attached to me." Tatsumi stated.

The figure, a beautiful, blonde woman with rather large, ahem, assets dressed in gothic fashion, stepped through the open window. "Attached to you? You're delusional." Both boys turned in the direction of the new voice. "The master would never take to the likes of you! Die, gutter-trash!"

It was at this point that Furuichi started to freak out. "Wh-who are you?"

"Who are you callin' gutter-trash? And get down from there now! Waltzing into my house like you own it!" Tatsumi shouted.

"Uh, it's Kai-chan's house." Kaito could tell Furuichi wasn't too pleased with the idea of picking a fight with this lady, and frankly neither was she. She wasn't normal.

"Now, Master, come here. Hilda is here to bring you home." The woman, now known as Hilda, said with her arms out and ready to take him from Tatsumi.

The baby merely turned his head, crushing Hilda. Tatsumi's expression was... hard to explain. "Looks like he doesn't like you!" Tatsumi teased.

"Freaky..." Furuichi muttered.

Hilda, embarrassed, tried again. "Come now, Master. It is time to go!" Hilda attempted to pry her 'Master' off of Tatsumi as he laughed at her. "Let go of him, Master!"

"Oga, wouldn't giving the baby back to her fix everything?" Tatsumi, realizing that this was what he wanted in the first place, assisted Hilda in prying the baby off.

Kaito knew what was going to happen as soon as this became a game of tug of war. She rolled her eyes and put her arms around the infant in an awkward side-ways hug. The baby, seeing her breasts, latched on to her instead. Rubbing his cheek against her like he did to Tatsumi earlier, the baby gave what Kaito assumed to be a threatening glare to Hilda, crushing her again.

Once the commotion died down, everyone sat down at the table with the baby in Kaito's lap.

"I apologize. I am this baby's maidservant demon, Hildegarde." Hilda introduced herself.

"Demon?" The boys were confused at Hilda's introduction.

"And that child is to be king of our demons. His name is Kaiser de Emperana Beelzebub IV. In other words, he is the demon lord."

"Demon lord?" Furuichi muttered.

"Demon lord?" Tatsumi muttered.

"Demon lord?!" Both of the boys cried out in shock.

Kaito sighed at their reactions. Well, not that she wasn't a little surprised herself, but come on! He electrocutes everything around him when he cries, for kami's sake! Demon seems to be the only explanation. She leaned over and laid her head on Tatsumi's shoulder, to which he briefly glanced down at her.

"Um, Hilda-san, was it? Thanks for the exposition! That's great and all, but since you've come to take him back, well, if you don't mind..." Furuichi said as he tried to get rid of the baby as soon as possible.

"No, that won't be possible. Why? Because you seem to have been chosen as the Demon Lord's father. The great Demon Lord said this: Take him to the human world, find some human to raise him, and have him destroy humanity, 'kay?" Hilda explained.

Kaito twitched a little. 'Is it just me or does this kid's dad have a few loose screws?' Apparently, Furuichi and Tatsumi thought the same thing.

"I have come here in search of a human suitable to be the young Master's parent." Hilda stated.

"Eh?"

"Good luck." Before Furuichi could escape, Tatsumi grabbed the front of his shirt. "You just gonna run away?"

"This is Kai-chan's house. Go home!"

"Hell no!"

Kaito had just scooted closer to Hilda when some random dude who looked like he belonged in a gay bar appeared. "I knew it! My eyes do not lie."

"Wha-"

"This is the dimensional transference demon, Alaindelon." Hilda introduced the man.

"A dimensional transference demon is just as the name says: a demon that can transfer people or things between the dimensions. In order to transfer the Master from the Demon world, I floated down the river. And, half-conscious, I saw you standing and laughing heartily as humans groveled before you! I was convinced!"

"So that's why?" Tatsumi muttered to himself.

"It was your destiny." Furuichi said with a smirk on his face.

"Quit messin' around! The parent of the Demon Lord? So the kid likes me a little! Big effin' deal! I ain't gonna do it! No way!"

"In other words, you refuse?" Hilda asked.

"Duh! Take him and leave now!" Tatsumi snatched Baby Beel from Kaito and thrust him towards Hilda. Kaito frowned. Demon lord or not, Beel was still a baby.

"Is that so? Then please die." Hilda said with a closed-eyed smile.

Hilda had chased them after completely destroying Kaito's small one-bedroom apartment.

"Crap! She really is a demon!" Furuichi shouted.

"Forget that! The bitch just totaled my apartment! Where the hell am I supposed to live now? As soon as I get my hands on a gun, I'm gonna blow the fucking bitch's head off!" Both of them looked over at Katio surprised. She rarely ever used such violent threats unless she was uber pissed.

"Kaito, don't worry about it. I'll handle it!" Tatsumi said.

"Like hell you will! He's still stuck to your back!"

Tatsumi looked at his back to see that Baby Beel was in fact clinging to him. He tried to pry him off again but was that Hilda had managed to get ahead of us.

"Give up! Do you think you can escape a demon?" She asked as she stood on top of a light post

"Shut up! Stay up there forever acting cool!" Tatsumi shouted.

The three humans and demon baby took off in the other street which was suddenly blocked by a giant demon bird. Tatsuki kicked it out of the way, freaking Furuichi out. "You. Kicked. A. Demon?!"

They continued running while Hilda was in shock from Tatsumi kicking her bird. Beel was apparently enjoying the ride.

"Okay, I kind of respect that about you!" Furuichi exclaimed.

"It's important to hit 'em first!" Tatsumi stated as he led the group away.

Hilda was back on the chase, throwing some weird energy blasts at them. They ended up cornered at the river without anywhere else to go. Hilda pointed her blade at Tatsumi's face. Kaito gripped his hand, for once truly afraid of what this woman could do; what she would do to Tatsumi. He squeezed back gently, not taking his eyes off Hilda.

"You think you can escape? You refuse, despite being chosen by the Demon Lord. Demons are very picky about contracts, you see." Hilda said with a glare towards Tatsumi.

Applying more pressure, Hilda cut Tatsumi's face, drawing a drop of blood which landed on Beel. He started becoming upset; crying louder than they've heard him all day. The electricity flowing off of him seemed much more intense than before, but Kaito refused to let go of Tatsumi's hand.

Soon the lightening engulfed her and Kaito was in the greatest pain she had ever imagined. The shock she had experienced before was nothing compared to this. She vaguely remembered her screams of pain and strong arms wrapping around her as she fell to the ground, unconscious.

When Kaito had awoken, she realized her body felt extremely tired as well as a bit sore.

"Hn, Oga Tatsumi was able to withstand the master's cry and was even able to calm him down. You're going to have to become a lot stronger if you ever want to be worthy of being the Master's mother." Startled by the voice, she bolted straight up, but immediately fell back. Hilda was sitting next to her with Baby Beel in her lap.

'How long had she been there?' Kaito asked herself before she remembered the last part Hilda just said to her. 'Wait, mother?!'

"If Oga Tatsumi is to be the young Master's father, then it is only logical that you would be his mother. You are his mate after all."

Kaito's cheeks colored at her choice of words. In many demon folklore, a mate was the equivalent of a husband or wife.

"Besides that, the young Master seems to be almost as fond of you as he is of Oga Tatsumi." Hilda added.

As if to prove her point, Beel crawled over to the bed, wanting her to hold him. Kaito propped herself up on her elbows and noticed she was in Tatsumi's room. She pulled Beel up and saw a familiar figure beside her. Blinking, she turned to Hilda. She had a smirk on her face that spelt all kinds of trouble. "When both you and Oga Tatsumi lost consciousness, we brought you here. I thought it would be appropriate to lay you together to conserve space."

Kaito blushed again and lay down on her side with Baby Beel in her arms before she asked, "Uh, Hilda-san, how long was I out?"

"Almost two full days." Hilda replied as Beel yawned and cuddled with her, falling asleep. "Sleep. Your body still needs rest to recover from before. You are not as strong as Oga Tatsumi."

Kaito smiled softly. Even through her stoic voice, she could hear the concern laced in it. It was not for her personally rather for the Demon Lord's mother, but it was still nice to know she cared, if just barely. "Thank you, Hilda."

Kaito was just about to follow Baby Beel's example when Tatsumi loosely draped an arm around her waist in his sleep. Hilda smirked again but Kaito chose to ignore it, opting instead to bury her burning face in the pillow. Being too tired to do much anything else, she went back to sleep wondering how the hell life got so complicated.