My first fanfic ever! Slight KHRxEyeshield 21 crossover in this first chap. Because I hate creating new characters so once in a while if I feel like I want to have new chars in my story I would take them from other manga. So…

Enjoy!!!

"Tenth, about the doc-"

"Finished." Tsuna cut off, shoving a stack of paper works aside and rested his head on the desk instead. "I'm dead tired, haven't slept for three days. Can I rest, Reborn?" He whined. Gokudera noticed Reborn sitting on the open window sill.

"No, you still have works to do. Don't be too spoiled, idiot Tsuna." Reborn said monotonously.

Sighing, Tsuna leaned back on his chair looking straight at Gokudera. "Sorry Gokudera, you just had to see me like this..."

Gokudera shook his head. "No, Tenth. You have been working hard lately. If anything I can do to help, just ask me anytime!" He offered spiritedly.

Tsuna smiled. "Alright. Then please take care of these documents. And also, this mansion is under your watch while I'm away. Ask Yamamoto to help, too. Okay?" The young boy said hopefully.

"Yessir! You can count on me, Tenth!" Gokudera responded with a deep bow.

"And Reborn, try not to be a burden to them during my absence. You're a very unpredictable little kid. Who knows you might blow up the whole mansion for the fun of it." Tsuna lightly told off Reborn. Reborn was now much like an elementary school kid, but his attitude still never changed a bit, much to Tsuna's dismay. It's been four years since they had faced the devastating future, and all the damages had been repaired. Tsuna was now 18 year old, living in Trento, Italy as the infamous Vongola Decimo.

"Unless you want to die now idiot Tsuna, hurry up get off your ass from the chair and go pack your stuff. In less than an hour, you're off to Milan." Reborn stated, gun-shaped Leon in his hand.

Tsuna rolled his eyes. "I know, it's only for three days. Don't need much stuff to pack." He replied, patting Gokudera's shoulder as an I-will-be-counting-on-you encouragement, before leaving the room muttering, "What a troublesome kid."

Right after Tsuna arrived in Venice with the Vongola's private jet, he was greeted by Kusakabe who was waiting beside a black limousine.

"Welcome, Sawada-san. It must be a long flight and you must be tired." Kusakabe greeted, smiling guiltily as he noticed Tsuna's tired figure. 'How many days haven't he slept?'

However Tsuna being Tsuna, still gave a cheerful smile. "I'm fine, Kusakabe-san. I'm sorry to keep you waiting."

"It's not trouble at all. Please get in the limousine. We're going to the hotel." Kusakabe said, opening the door to Tsuna.

After Kusakabe parked the limousine at Tronchetto, they rode the Vongola's private boat. Tsuna appreciated the beauty of Venice while they strode along the canals and went under the famous Rialto Bridge, it's not the first time he went there but every time he was there he just couldn't help but to be amazed at the most beautiful city in the world. However Tsuna kept in mind that he was there to see Hibari, and with that even the beauty of Venice cannot help him to ease his nervous and anxiety. Tsuna shook his head. 'No, it's just Hibari-san. He's not scary… or is he?'

As soon as they arrived at the designated grand hotel, Kusakabe motioned Tsuna to follow him to the cafe. There, Tsuna could see a man was sitting in the corner far from the other herbivores. Tsuna approached him with a smile.

"Very glad to see you again, Hibari-san." He said happily.

The said man didn't respond, simply sipping his milk currently enjoying the texture. Tsuna stifled a chuckle and took his seat in front of Hibari while ordering a cup of coffee from a waitress in the process.

"Why do we have to meet here, of all places?" Tsuna tried to strike a conversation. No reply was given so Tsuna continued. "Hibari-san, you can just meet me at the Vongola's mansion. You haven't been there for quite a long time." 'And I don't have to fly all the way here.'

"Are you questioning my decision, Sawada Tsunayoshi?" Hibari finally gave a respond that was accompanied by a murderous glare. Tsuna has quite anticipated it, so he smiled. "Ah, no. Of course not." He replied briskly while sipping his coffee.

"We stayed here for a while to do some investigations, Sawada-san." Kusakabe served the details helpfully. Hibari grunted while Tsuna only ohh-ed.

"Now we're heading to Japan. Further discussion later." Hibari stated.

Tsuna blinked. "Japan? Wow but wait, now as in... now?"

Hibari stood up with a smirk. "I've already checked out from the hotel. And yes, Sawada Tsunayoshi. Now."

Tsuna looked crestfallen with the news. He only just arrived there. Hurriedly, he finished his coffee with one swift and caught up with Hibari who was already striding along towards the limousine. Kusakabe watched the young boss go and thought, 'What a poor kid.'

Tsuna dreaded his fate. He knew travelling with Hibari meant business trip. Gruesome and serious business trip. According to the Vongola Laws, Cloud Guardian is the only guardian who is granted the freedom to wander around the world and is not obliged to stay with the family unless there is a situation. Being so, Hibari really made full use of the law. Not only Hibari, though. Tsuna decided to be a bit more lenient (much to the elders' protests) and let his other guardians to find their own life and not just sitting around doing his works. Of course, Gokudera was very dedicated to be Tsuna's right-hand man (Tsuna was happy, at least there's a friend to accompany him) and Yamamoto decided to stick around, too. Lambo was with Tsuna, seeing that it was Tsuna who had to look after him, and Ryohei continued to do his extreme trainings in other countries. It went tough on Mukuro though, the elders were not much agreeing to let Mukuro see the world, he was better off in his cage. However using the Decimo's superiority, Tsuna managed to release Mukuro and granted him the permission to explore the world with his small group. Of course, Tsuna had to face the consequences, he had been banned from any Vongola meetings (Tsuna wouldn't want to go anyway) and the elders had been quite harsh on him. Luckily the Ninth helped him out.

So back to the topic. Every time if Hibari contact the mansion, it was either an assault on the enemies or a raid on the other mafias. After all, this is Hibari Kyouya we're talking about. Hibari always come up with dead serious mafia-related matters. It's a good thing actually as the Vongola can expand the territory much faster this way, simply crashing on the enemies. However, Tsuna wanted it to be done more slowly but efficiently and not quickly but disorganized.

Therefore following Reborn's advice (more like Reborn's order), it would be best if Tsuna is always there at Hibari's side to watch out so that Hibari would not do something that can bring harms to Vongola. As far as Tsuna concerned, Hibari hadn't done anything illegal but that doesn't mean he hadn't done anything bad like launching a full scale attack against the enemy and fighting people just because it was so crowded.

Tsuna was now back in the private jet. He stared at the sleeping Hibari in front of him, and then he sighed. "He just sleeps whenever he wants. Wish I can do like that too." He muttered silently. Then again, he was awed by the super cool sleeping figure of Hibari; he was actually kinda cute when he sleeps. Tsuna suppressed his urge to poke Hibari. Thank goodness Kusakabe was at the front piloting the jet.

"Hey Hibari, you know how much we all missed you. Come back to the mansion once in a while, won't you?" Tsuna whispered, watching Hibari. He yawned and stretched his hands. God knew how badly he wanted to sleep too, but he just couldn't when he's in the jet or any other moving vehicles. Talking about phobia...

But hey, he has a good solid reason for developing the phobia. Once, the whole guardians, Reborn and Tsuna were taking a flight from Japan to Italy in a normal plane together with other ordinary passengers. Feeling the flight would take hours, Tsuna decided to sleep. And since then, he vowed he will never fall asleep in any vehicles ever again. What's with Gokudera trying to pick a fight with the extreme Ryohei, Yamamoto was so bored that he decided to polish his sword in front of the other passengers, Mukuro who can't find anything better to do than irritate Hibari, and Hibari who was easily pissed off that he wanted to bite Mukuro to death and also decided to do the same thing to others just because it was so crowded. Let's not forget that Lambo who seemed he wanted to cry because all his attacks against Reborn were backfired, so the poor Lambo took out his 10 year old bazooka and shot himself to reveal an older Lambo. They seemed to forget that they were riding a normal plane with normal passengers who can easily faint just from seeing a sword, some dynamites, tonfas, a small pet that changed into a gun (even pets are not allowed in a plane), and a huge bazooka that can do some magic. Hence as the head of the family, the poor innocent Tsuna who fell asleep during the journey had to pay a huge sum of money to the flight company for the physical and mental damages done and the whole group are banned from taking any flight from the company for eternity. Poor Tsuna was having a trauma...

So all along the journey to Japan, Tsuna just stared outside the small window appreciating the clear blue sky with clouds, sometimes he mumbled to the sleeping Hibari about some random or trivial things, and he took his time reading some documents when he felt like it, but most of the time he kept thinking that it was the first time he went back to Japan after two years. He still kept in touch with his parents through phones and e-mails, but he hadn't met them for two years. What kind of a son who would abandon his parents? Tsuna grimaced at the thought. He really missed them... badly. However his work as a mafia didn't allow him to keep in touch so much with the ones he loved if he wanted them to be safe. Who knows some nasty enemies would do cheap things as to kidnap his family members as revenge because he is just doing his job as a mafia. Tsuna sighed, he wondered why'd Hibari want to go back to Japan?

"A billionaire Japanese is going to open a business in Milan, in Vongola's territory." Hibari said briefly, striding along the hallway airport towards the lift with Tsuna at his side. It was not crowded, and that Tsuna was relieved. "What kind of business does he do?" He asked.

"He'll be selling American football products franchise. The business is already overwhelming with profits in Japan, so this herbivore decides to expand it to Italy." Hibari explained with an irritated voice, keeping his fast pace that once in a while Tsuna had to jog to catch up with him.

"Oh, so a rich businessman. I don't see any problem at all." Tsuna said with a contemplating look. Though the glare Hibari gave him made him shuddered. Hibari stopped abruptly in front of the lift and Tsuna almost walked on him. Hibari pressed a button. "This businessman expands his business through illegal act, Sawada Tsunayoshi. He does things through blackmailing. Many people have been forced to be under him."

'Sounds like you.' Tsuna pondered.

The lift opened to reveal a pregnant young lady. Tsuna smiled at her good-naturedly and his smile was returned. 'A gorgeous lady.' He thought.

"Do you hear me, Sawada Tsunayoshi?" Hibari demanded threateningly.

"Err, of... of course! So, um, sounds like a scary person. "Tsuna replied lamely. Another glare from Hibari as the man thrusted a piece of paper to him. Tsuna made a quick scan.

"That's the herbivore's profile. We're heading straight to his office." Hibari stated.

Tsuna groaned inwardly. 'Acting rashly again. I had three sleepless nights, two continuous flights and now we're going to make an assault. I'm so dead tired.' He suppressed a sigh as he looked at the passport-sized picture of the businessman. "A young billionaire! I thought he is an old man. And God, he really is scary. What's with the pointy ears and those sharp teeth?" He blurted out in amusement. The pregnant lady coughed.

Hibari smirked. "Are you scared?"

"I'm not! I'm just trying to describe this person from a normal point of view!" Tsuna replied defensively. Trying to ignore Hibari's smirk, he focused back on the paper. "So he's Hiruma Yoichi." His eyes turned wide. " Wait, that Hiruma Yoichi? The famous NFL amefuto player?"

"He's my husband!" The lady behind him exclaimed in surprise. Tsuna looked up at her, his eyes widened in shock.

"What? So you're the amefuto's manager, Hiruma Mamori?"

"Yes, that's me." The lady said, smiling brightly.

Tsuna gaped, before turning to Hibari with a frown. "What's the meaning of this? He'smarried!" He stated in Italian.

Hibari gave an equal frown. "I don't see any problem."

Tsuna pointed at Mamori. "He's getting a baby! You know it's against my policy to eliminate a person who's married and has children!"

"It's your policy, not the Vongola's. And either way, I'm not going to follow any policies here. I'm acting on my own." Came Hibari's cold reply.

"Hibari Kyouya!"Tsuna's voice was harsh and fierce. Suddenly they heard a small scream from Mamori. She was holding her bulging stomach currently in pain.

"What's wrong, Mamori-san?" Tsuna asked uncertainly, helping her to stand firm.

"T...The baby. The baby's.. coming out." Mamori whispered followed by another painful scream. Tsuna's eyes widened in panic. He looked at Hibari. "W.. What should we do?"

Hibari sighed. "Take her to the hospital. "

The lift finally opened, Hibari came out carrying Mamori while Tsuna at his side currently was talking to the phone. "Alright? I want a limousine at this instance and create a clear route to the hospital nearby. No excuses, surely you can do that under the name of Vongola." He said before hanging up. He glance at Mamori worriedly only to notice she was staring at him.

"You can make a clear route to the hospital?" She said in awe.

Tsuna laughed nervously. "Now's not the time to be surprised."

At the lobby, Tsuna bought some coffee and strawberry milk from the vending machine. He sighed; it's already been an hour since Mamori was brought inside the ICU. Tsuna stated firmly to Hibari that they should put aside their business matter for a while, which was why Hibari was in a bad mood. Tsuna watched Hibari who was leaning on the wall apparently with his eyes closed.

'Doesn't his back hurts? It's been an hour he's in that posture.' Tsuna mused. He approached slowly until he stood side by side with the man. Slowly, Hibari's eyes opened and looked directly at Tsuna.

Tsuna shrugged. "Here, I got you your favourite strawberry flavoured milk."

"I'm not a kid who easily gets lured in by some candies, Sawada Tsunayoshi." Hibari stated coldly, nevertheless he took the offered drink. Tsuna stifled a chuckle. "Yes, I know."

They spent the silent moment having their drinks until a nurse came, saying that Hiruma Mamori has safely delivered a baby boy and was resting in the room 021. Tsuna said 'thank you' to the nurse before grabbing Hibari on his arm. "Come on, Hibari-san! Let's take a look at the baby born." He said excitedly.

Hibari merely scowled. "I'm not in the mood to-"

"Oh, just come on already!" With inexplicable effort, Tsuna dragged Hibari towards the lift.

As soon as Tsuna and the frowning Hibari arrived at the room 021, they saw Mamori with her cute little baby at her side on the bed. "Congratulations, Mamori-san!" Tsuna exclaimed happily, approaching them. Hibari continued to lean against the wall currently in a very, VERY bad mood while showing no interest at all.

"Thank you, Sawada-kun, Hibari-kun. You have helped me a lot." Mamori said, smiling weakly. Tsuna beamed, glancing at the baby who has pointed ears and was currently sleeping. 'He has the ears like his father.' He thought in amusement.

"Come take a look, Hibari-san. Isn't he cute?" Tsuna suggested, trying to grab Hibari closer but Hibari pulled his arm away with a scowl. Mamori was oblivious to it as she was busy looking at her baby. "I hope he'll be as brilliant as his father, although I'm not wishing him to be so wild." She muttered, still smiling at her baby. "Then again, I wouldn't mind." She continued with a giggle.

Tsuna watched her, contemplating something. 'She looks like she's having a great happy life with Hiruma Yoichi. Is it true that he does illegal deeds?'

Suddenly, the door opened and a familiar man entered.

Tsuna was alert, and so did Hibari.

"Ah, dear." Mamori said happily as Hiruma Yoichi approached and kissed her lightly on the cheek. "Kekeke, is it a boy or a girl?"

"A boy. Aren't you going to ask me whether I'm okay or not?" Mamori asked slightly pouting, but immediately cheered up as Hiruma gently stroke her hair. He grinned. "I know you're okay."

"Well, these two men helped me out." Mamori said, looking over at Tsuna and Hibari. Hiruma glanced at the direction.

As quick as lightning, Hibari drew out his tonfas and ready to attack Hiruma, only Tsuna stopped him midway. "Stop, Hibari-san! You're not to attack people here in the hospital, of all places!" His voice slightly rose due to panic, hands still clutching firmly on the tonfas. Hibari glared, his cold voice echoed. "Move."

"What's happening?" Mamori asked quietly, she was shielded by Hiruma with machine gun on his hands. He looked serious.

"Nothing, Mamori-san. Sorry, we're having a minor dispute here. I think we should go now. Don't you think so, Hibari-san?" Tsuna said more fiercely now with his hazel eyes looking straight at Hibari's. However, Hibari was still being stubborn and tried to struggle.

"Hibari Kyouya." Tsuna warned coldly, this time with a more superior tone. "We will have to leave." He said, more like an order. Hibari growled before he finally retreated, keeping away his tonfas and left the room with heavy footsteps.

Tsuna sighed, before he looked around. His eyes rested on the machine gun Hiruma was still holding. 'Wow, where did that come from?' He wondered.

"Dear, put away the gun!' Mamori hissed but Hiruma ignored it. Instead he said, "If you fucking tell me what's just happened, I might forgive you fucking shorty."

Tsuna smiled nervously. "I'm really sorry, my friend was being grumpy just now. Hiruma Yoichi-san, can we meet tomorrow at 4 p.m? That, if you're okay with it." He asked hopefully, wanting a peaceful meeting with the demonic man.

Hiruma pondered for a while, before his trademark grin appeared across his face. "Hell yeah, don't be late or I'll fucking explode you with C-4." He replied, his grin turned wicked every second.

Tsuna nodded in appreciation, the threatening words from Hiruma did not affect him at all. "Then, I'll take my leave. Congratulations for the newborn baby." He said, bowing at Hiruma and Mamori before leaving the room.

'That's it.' Tsuna thought furiously. 'Hibari-san crossed the line.' He smirked. That little cloud guardian of his. How dare he attempted an assault in a hospital? What's more a husband of a lady who had just given birth to their – if he was correct – first child? No, Tsuna couldn't accept that. All the years Tsuna has been the Vongola Decimo, he had sustained a good reputation of himself. A kind and gentle boss who if possible wouldn't even flick a fly away. But now? He's gonna violently smacked that Hibari Kyouya.

Tsuna found Hibari at the lobby.

"Hibari-san, do we have a moment?" Tsuna asked, smiling very threateningly. Hibari looked annoyed but equally dangerous too. "Excuse me, nurse. Could I have a vacant room prepared immediately?" Tsuna asked a nurse nearby, showing his Vongola ID card. The nurse nodded nervously. "Right away, sir." So, Tsuna dragged Hibari, following the nurse to the hell-would-be room.

"What did you do that for?" Tsuna demanded furiously, very straight away to the point.

"Do what?" Hibari asked back, trying to remain calm although an evil aura emitted from around him.

"How many times do I have to tell you that I would not strike a husband, what's more a father? It against my policy and you know that!" Tsuna said, his anger vented out.

"You know I won't be tied by you or Vongola, Sawada Tsunayoshi. I'll do my way but it seems that you're getting in my way ever since this morning. I don't like to be dragged around and you know that." Hibari said, launching a counter attack.

Tsuna looked annoyingly furious now. "Oh yeah? Well one thing I know is that Hiruma Yoichi is a nice guy."

"Oh? Are you telling me that I'm wrong?" Hibari demanded in dangerous tone, stepping closer to Tsuna. Tsuna looked up at him, his hazel eyes were big.

"No. Hibari-san, can't you just become nicer?" He asked, sounding tired now.

"Sorry I'm not what you think I would be." Hibari stated coldly, turning away.

Tsuna sighed, he was tired of all this. His vision was getting blurry, the surrounding was much hazier. He could see Hibari was walking away now, he tried to stretch his hand asking the man to stay but instead he fell down hard on the floor. Tsuna tried to smile when he saw Hibari turned back at him, his face expression was unreadable as he drew nearer. "Sawada Tsunayoshi... Sawada Tsunayoshi..." The cool voice sounded... different than usual. Tsuna's attempted smile apparently didn't reach Hibari, but his hand was grabbed by the man. Tsuna closed his eyes, letting the darkness engulfed him. 'Maybe it's better like this.' He thought before he was conscious no more.

So, is it long??

Please R&R… because I'm not a confident writer, to say the least. Haha…