Haha, a lot reviewed about Natsuki's reaction to the scarring scene (on his part at least)! Yeah, I kind of enjoyed writing that bit knowing some hilarity would ensue. So, I updated this chapter real quick!

Enjoy!

Chapter 7 One Objective

Reborn's face was blank, but quite disappointed as he looked at his student whose head was spinning around as he fainted. They had just witnessed the reason why Tsuna goes out on Saturdays. It was because she was going out with the Head Prefect. Even he had no idea that the older twin's type was that kind of person. Other girls fall for the really popular and handsome ones, not the dangerous and intimidating ones. But Tsuna was not just some other girl, and that scene earlier proved it.

"My…my sister…" Natsuki muttered.

Reborn liked the sight of his student in his stupefied state. "So she was dating Hibari Kyouya after all. That makes it easier to make him your guardian," he informed.

At that statement, he got back to his senses. "No! I won't accept that bastard as my sister's boyfriend! He must have manipulated her with hypnotism!" he guessed stupidly. "I will see for myself if he is worthy of Nee-san!" he then stopped, "Scratch that, I will never deem him worthy of Nee-san!"

Reborn just stared. It seems he has forgotten about recruiting the prefect as a guardian. But then, he was a brother, and it's only normal that he becomes overprotective of his sister whether he is the older one or not. Even though their mother has approved of the relationship, the same cannot be said of the younger twin. The brother and father are always the overprotective types when it comes to the sister and daughter dating a boy, especially if the said boy is the most feared teenager in Namimori.

Fishing out his phone, Natsuki dialed a number. A groggy voice answered it three rings later, "Ugh…Tenth? Why have you called at this time?" he wondered.

Natsuki growled, "So the super secret thing that my sister does on Saturdays is going out with THAT BASTARD HIBARI?"

Gokudera somehow woke up completely on the other line, "Forgive me for not telling! Hime-sama forbade me to do so, knowing that that would be your reaction," he apologized.

"Since when did this happen?" Natsuki demanded.

"Three years ago Tenth," he revealed. "By the time I came, they were already in a relationship. The only one who knows the entire story is Hibari's right hand, Kusakabe Tetsuya. That is all I know," he confessed.

Calming himself down, he heaved a long sigh, "It's alright Gokudera. I understand…I'm sorry for waking you up with my tirade,"

"It's fine Tenth, no harm done," Gokudera said.

"Goodnight then," he said and hung up. Hibari Kyouya was now on his death list.

The next morning when Natsuki went down from breakfast, he heard Nana squeal in delight. When he came to the kitchen, Nana was fussing over the ring on Tsuna's finger, "Oh my! Such a romantic boy! It's better than an engagement ring~!" she said with delight.

Tsuna smiled in return, "It's like a promise ring, but this is more of a…um…a property ring,"

"But still he has put some effort in that ring! It's one of a kind!" Nana complimented, "I'm quite jealous~ I wish your father had done the same to me when we were still dating~" she wished.

Tsuna wanted to say, '…don't count on it Mom…' but she said nothing and continued to smile.

Natsuki glared at the ring. It did look like it costs a fortune. "What is that?" he asked looking at it in horror, the thought of the Head Prefect becoming his brother-in-law plaguing him.

Tsuna looked at him, "Don't be like that Natsuki! It's just an anniversary present,"

"An anniversary present from the scariest man in Namimori! How could you keep something from me like this?" Natsuki complained.

His sister rolled her eyes, "Come on, you already know since last night. Like Kyouya and I didn't hear a thumping sound from your room when he drove me home," she busted.

"Because he dared kiss you!" he spat out.

Nana laughed, "Aw Natsu-kun, it's only natural for them to do so,"

"No! I will not accept him as your boyfriend! Never!" he protested.

"Sucks for you then," Tsuna replied. "My relationship with Kyouya has been going on for three years, and you have no right to protest when you weren't there to witness what we have gone through," she informed. She could tell that she would only escalate his hate towards her boyfriend, but seeing his enraged face was picture perfect.

Natsuki growled as he stomped back to his room after grabbing a toast. "That's it! Tomorrow, I will challenge Hibari Kyouya into battle!" he swore as the door slammed shut.

Reborn looked at Tsuna, "Congratulations," he said, "But it's a great wonder how you managed to restrain him," he mused.

Tsuna merely smiled, "That is a secret that I would take to my grave," she said. "But don't you tell anyone, Reborn. The only ones who are aware of this are the Student Council and the Disciplinary Committee, and every one of them is sworn to secrecy for a reason. Can you promise me that?" she asked looking straight in his eyes.

Only brave people can manage to look at him directly in the eye, but Reborn could tell that she was really pleading on not to tell anyone of her relationship with the prefect, preferably not Iemitsu. It would be hard if he made an enemy of the enigmatic girl. "Of course, your secret is safe with me, but I don't know about your brother,"

Tsuna looked at the visible set of stairs, "Oh, he'll get over it. I'll talk to him," she assured. "Drama queen," she murmured.

Tsuna knocked on Natsuki's bedroom door, "What is it?" Tsuna opened the door and saw her brother playing computer games. Natsuki looked towards his door to find his sister, but he still carried his frown. "Is there anything you want?" he asked.

Tsuna sat down on the bed across the computer, facing her brother. "Are you still in too much shock of my boyfriend?"

Natsuki sighed, "Come on Nee-san! There are a lot of people in the world that you could go out with. Out of millions of people out there, you pick someone as scary as a devil," he complained.

Tsuna smiled weakly, "I'm going to pretend I didn't hear that," Natsuki realized that he had hurt her and he felt guilty instantly, "But Kyouya is the most important person in my life, Natsuki." she explained, "He was the one who helped me get a life and leave the moniker that the little imps gave me back when we were kids," she explained. Natsuki doesn't know if he was one of those imps she was talking about. "He was the one who changed me,"

Natsuki looked at her, "How…how did the two of you met?"

Tsuna saw the interest of her brother, "It's a long story, but the first thing that happened is that I was alone on the park swing, trying to pass the time, until he had come across me, asking why I am not crowding in with the other kids at the playground. I told him it's pretty useless because no one wants to play with me, because I was 'Dame-Tsuna.'" Tsuna laughed, "He lectured me not to think like that because he could sense that I was different. When I went on my way home without knowing his name, guys in black tried to kidnap me, but Kyouya was there to save me. When I thanked him, he offered me that he would make me stronger than any of the useless herbivores in Namimori, and I agreed. A year later, he asked me out, and we became a secret couple. The only ones who knew it first were Mom, Yamamoto, Nii-san and Kyoko-chan."

Natsuki knew someone was missing, "What about Giotto-nii?"

Tsuna laughed loudly, which surprised Natsuki, "I didn't want him to know at an early stage and he only found out three months later. He went ballistic when he found out and started cursing in Italian."

"Oh…" he managed to let out. Giotto was a little too fluent in Italian, given his blood.

Tsuna then shook her head after realizing that she was getting off track, "The thing is Natsuki, I'm not asking you to like him instantly," she said as she stood up and took her brother's hand, "I know it might take some time for you to accept him, but please, can you promise me not to tell this to anyone you come across to in school? Only my friends in the SC and DC know about this relationship," she pleaded.

Natsuki could see that his sister was serious about it. He knew that this information would destroy Kyouya's and Tsuna's reputation that could lead to creation of rumors. It was not going to be a pretty sight, he guessed. "Um…yeah…" then he looked at his sister, "But I'm still going to challenge him!" he said, his energy returning.

Tsuna laughed as she let go of his hand, "I would like to see it with front row seats," she said as she left. Natsuki doesn't know if that the hidden statement there was either she would be amused by the fight, or she would be amused with him being defeated by the Head Prefect. Either way, he prefers to challenge him one way or another.

Fran could tell that Natsuki was in a bad mood the moment he entered the classroom. Tsuna had warned him of his little temper earlier on the phone. Of all the classmates they had, Fran was the closest to Natsuki right now.

"Whoa, what's with the mood?" he asked.

Natsuki growled as he sat on his desk, "I just found out what my sister does on Saturdays…" he seethed.

"Ah. So you found out already," Fran said.

Natsuki grabbed his shoulders and shook him violently, "Why didn't you tell me of that fact?"

Fran was a little dizzy right now, but he managed to answer, "All of us are sworn to secrecy the day we all found out about it. Should the student body figure it out, there would be hell," he informed. "Hibari-san and Hime-sama will not stop until they find out who would be the unlucky one who would reveal that sacred secret,"

Natsuki released Fran and sat back down and buried his face in his arms, "Of all the people in the world…why him…?" he muttered.

Fran patted his back, "It's alright. You, Octopus head-san and Kaichou shares the same opinion, and their reactions were a sight to see. On Kaichou's case, he recited all curses in Italian from A to Z, while Octopus head-san fainted," he mentioned. "And that is one of the two situations that he would faint,"

"What's the other one?" he wondered.

Fran shrugged, "He won't tell anyone," he explained. "But if it's something he doesn't want anyone to know, it's bound to be embarrassing," he mused.

"Hold up, we're getting off track here…" Natsuki said.

"Then what are you aiming for?" Fran wondered.

"I want to challenge him." he pressed.

Fran seemed to get the message. "Oh I get it. If you want to meet your death, then go to the Reception Room or the rooftop at the North Wing. He's usually there for his nap,"

That was enough information for Natsuki.

Kyouya yawned as he waited for the younger twin to show up at the North Wing rooftop when lunch break came. It was a good fifteen minutes later when the door slammed open, revealing the twin of his girlfriend with blond spiky hair. Sometimes he thinks that the hair was a genetically altered hedgehog perched on his head. "It took you a while to get here," he mused.

He wanted to laugh at the angry expression of the kid, but his personality went against it. Instead, he just looked at him with a passive face. Natsuki glared at him, "I challenge you to a fight, Hibari!" he declared. "You are not suited for my sister!"

Kyouya twitched as he got up from the cold floor, a feel that he always liked on his back. He smirked at the blond, "What gives you the right to tell me that I am not worthy of Tsunarumi?" he asked.

"I'm his brother, and I do not accept you to be in a relationship with my sister!" he said as he placed on his metal gloves.

"Hn. You are just a mere herbivore that can't accept the fact that you sister is growing up faster than you, am I right?" he said as he took out his tonfas. "Very well, you better be a worthy opponent. I will bite anyone to death whosoever tries to take Tsunarumi from me," he said as he attacked.

Earlier, Tsuna had a bad foreboding at the back of her head. She had been distracted again, a habit that has been frequenting her recently when something she wouldn't like would happen, or something troublesome would occur. Either way, she knew this feeling had something to do with Natsuki. Fran had reported to her that Natsuki had been in a bad mood when he came into the classroom this morning. Tsuna didn't want to bother Natsuki in getting up early, since she arrives two hours early to prepare things in the two offices. That would be considered ungodly in the books of her younger brother.

Then from a distance, at the North Wing rooftop that can be visible from the open window behind her, she heard clanging metal that can only come from the tonfa of a certain Head Prefect. When she saw the railing, a blond head became visible at the fence and she knew from the spikiness of it, it was Natsuki.

Tsuna went pale. Her guess was right. Kyouya and Natsuki were fighting over her. Well, not like it didn't happen before, the first was when Byakuran started hitting on her, and then it was Mukuro. But the fact that her brother was fighting to prove that Kyouya is not worthy of her is a new issue, and a new excuse to challenge the prefect in battle. She knew it will not go well for the two of them.

Tsuna abruptly stood up, catching the attention of the ones in the office. "Oya, Hime, what has gotten you all jumpy?" Mukuro asked.

"Are you alright Tsuna?" Yamamoto wondered.

Tsuna kept on looking at the North Wing rooftop. The moment he saw Kyouya getting slammed at the fence, she ran out of the office, shocked eyes of the Council members following her until her footsteps were not heard anymore.

Giotto observed the window Tsuna was looking at and saw the answer to the problem, "It seems that Kyouya and Natsuki are fighting," he said.

Gokudera's head snapped up from the file he was reading, his glasses hanging barely on the bridge of his nose. "What? Tenth and the bastard?" he said in shock.

"He didn't accept the fact that Tsuna is dating Kyouya, that's for sure," Giotto stated.

The silver haired teen sighed, "And Reborn-san told me this morning that Hibari would make a good Cloud Guardian for Tenth. I could only wonder what would transpire from their fight…"

"Hibari wants to EXTEREMELY keep Sawada-chan, while the younger Sawada EXTREMELY wants him to keep away from Sawada-chan,"

Kyoko nodded in agreement. "Tsuna-chan had told me that Natsuki didn't take it well when he caught the two of them together when Hibari-san drove her home last Saturday night…"

"What did Tsuna see in Hibari anyways?" Yamamoto wondered.

Giotto was the only one with the answer, "The same reason why I fell for Alaude," he answered. The whole office knew of his secret relationship with the Vice President, but none of them knew the reason why as well. There are a lot of aspects that can describe the Hibari twins, but only a few can pinpoint some of the overlooked traits of the two and one of them was Giotto and Tsuna.

When Tsuna got to the rooftop, she stayed in front of the door, hearing the clangs of metal and the hits on the flesh. She could faintly hear the movement of their bodies fighting roughly for the other's demise. She peered into the small light that the door had provided.

Natsuki managed to dodge the tonfa that had been aimed at him by sidestepping, missing the weapon by an inch. Natsuki noticed that the other was coming for his face, so he jumped out of the range of the tonfa.

By now, Kyouya's shirt was a little soiled, but on the other hand in his case, there were already scratches that were made by the tonfa and the impact of his kicks, and the sole marks were proof of that. Natsuki was panting hard, while Kyouya remained passive, but breathing softly for air.

Natsuki was mad right now. He was panting hard while the prefect barely lost his breath? He was not going to accept this.

He was about to attack again when Kyouya stopped and lowered his tonfas. He could tell that Tsunarumi was behind the door. He could also tell that her younger twin, in his annoyance with him, did not even try to reach into his intuition to figure out that someone else was in the vicinity.

Natsuki growled, "Why did you stop?"

"Hn. I have no intention of wasting time on people who has Sister Complex," he said bluntly.

Natsuki twitched. "Are you giving up?" he said.

Kyouya looked at him blankly, "I do not give up. I'm getting bored in fighting you, though I do compliment you in landing some hits on me," he praised. "I am only talking too much for now, and I don't want to repeat what I say. Why are you against me and my relationship with Tsunarumi?" he asked.

Natsuki was taken aback by the answer. "Because…you don't deserve her," he said. Kyouya raised a brow, a sign for him to elaborate, "My sister is one of the nicest people in the world next to our mother. Even though she had hated Dad for neglecting her in place of me, she never held a grudge against me. I want her to be with a person that is well suited for her and someone who would protect her when I can't reach her in time." he said.

Kyouya smirked as he leaned on the fence, "Do you even realize in that thick head of yours who you are talking to, Sawada Natsuki?" he asked. The boy stared at him, "If it weren't for me, you wouldn't see your sister alive by now,"

Natsuki's eyes widened in disbelief, and now, Tsuna knew that he was going to tell him what really happened the day after they met. "What do you mean?"

"I believe that Tsunarumi has told you on how we met, correct?" the blond boy nodded. "A day after that, a group of thugs had been following Tsunarumi, calling her a Vongola," he started. He could see that he was starting to tense. "I know the Vongola because my grandfather was a former Yakuza boss. We come from a long line of tycoons both in the business and the underground society. But don't worry, I told her nothing about it," he lied. Of course, he had to make Natsuki think that she is still oblivious in the mafia. "I saved her, but I know that I could not save her always, so I taught her how to fight."

Natsuki couldn't believe what he was hearing from the prefect, but he decided against interrupting him. "I was always the one who spends more time with her, and with her kind personality that I rarely see in people, it attracted me to her. I vowed that day that I would never ever let her be in harm's way. But I realized that I couldn't do it alone. I realized that when the mafia has confirmed that she is related to you." Natsuki shivered at the cold stare. "Gokudera Hayato saw Tsunarumi in trouble after seeing that she was being kidnapped by men in black suits. He came to her aid when I couldn't be there fast enough. They were from an enemy family of yours, and she ended up in the hospital because she saved a herbivore she barely knows."

"Gokudera…" Natsuki muttered.

"Of course, to keep her oblivious, I lied to her. I told her that those people were only after her to make me come out and fight them myself. Since then, I knew that I had to protect her, and so I gave her the confidence in making acquaintances that are strong enough to protect her wherever she goes, but I stay distant to them because I don't like it when I see crowding." he continued. "I trained her more and more so that she could defend herself and not look like a total herbivore that needs her comrades to fight. And I swore to her that I would bite to death anyone who would and will try to harm her."

Natsuki registered all of his words slowly. His father was right when information about his sister has been leaked a few years ago. How could he not trust his intuition back then? He was such a complete idiot.

"Now," Kyouya interrupted his thoughts, "Do you still think that I am not worthy of her, Sawada Natsuki?" he asked. "Because if not, have it your way. I have one objective and one objective only. That is to protect her until the day I die," he declared.

Natsuki could see it now. He loved his sister to the point of risking his life for her, while he, the younger twin, would risk his dream and future, and become a mafia boss to protect her from their onslaught. Their objectives were the same.

"You would make a brilliant Cloud Guardian, Hibari," he said. "Would you become one?"

Kyouya smirked. "You must know, I don't follow orders from herbivores," Natsuki was despising him again. "But…" he looked at the clouded sky, "If it is what it takes to protect Tsunarumi, and you get yourself stronger, I might consider. I want to bite to death the strong people who would dare harm her,"

Tsuna smiled as the two silently reconciled. Her worry was leaving her. She retracted from the door and hurried down before Natsuki could notice that she had been watching. Looks like Natsuki got himself his fourth guardian. And the fourth guardian is none other than the Head Prefect.

Whoa, that was a little fast, don't you think? Well, things are in a rush in my place right now, and I figured I update quick and get on with the plots…

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