Title: Crimson-dipped Obsession

Summary: Bulma Briefs' life made a horrifying turn when an obsessed Saiyan prince arrived on Earth and wanted her to be his! What's more to this alien was a dark secret that has caused a change in the history of Dragon Ball Z, and if it is revealed, it holds the fate of the entire universe.

Genre: Horror, Psychological Thriller, Romance, Mystery

Disclaimer: I do not own Dragon Ball Z. Some events in this fan fic is also inspired by Mirai Nikki and DBXV.

Warning: You might find Vegeta out of character in this story as this fic is made as an answer to the question 'What if Vegeta was a yandere?'. Vegeta is originally and generally a tsundere. A Tsundere is a character who is initially cold and even hostile towards another person before gradually showing a warm and caring side over time. The yandere personality is the exact opposite of a tsundere personality. AYandere is a character who is genuinely kind, loving, sweet or gentle, but can suddenly switch to being aggressive orderanged. (From wiktionary).

If you don't like Vegeta to be like a yandere then I suggest you to turn back now and stop reading as this story also contains lots of blood, gore and violence.

Author's Notes: I have created the playlist for this story. Mostly were Japanese songs and Background music from random anime and games. I will list them by the end of this chapter. Thank you for the awesome reviews of elianni, koare-san, Iron throne, Spellweaver10, Kakashi's hoe and isa. If anyone noticed, I left a few hints as to who Vegeta's killer was in the prologue. More information about that event in prologue will be revealed in the future chapters so just hang in there! :) Also some events, only SOME events in this story will be based on Mirai Nikki. Most events will be based on Dragon Ball Z, and some games of the franchise.

Chapter 1: First Sight

[Age 762, November 3]

It was on the news on television where she first saw him. It has been a year since the warning about aliens trying to purge the Earth of all life was given to them. And now that the terrifying aliens have arrived on Earth, all that Bulma Briefs could do was to wait for Son Goku's return and pray that he wins this battle against these ruthless Saiyans.

She was mesmerized by the sight of the Saiyan with the flaming hair on the television screen. In comparison to Raditz and the bald Saiyan standing next to him, this man was petite, probably even shorter than her but he was definitely good-looking. However, he frightened her to the core. Not just because he was threatening to kill everyone on Earth but because his looks alone sent chills of fear across her spine. His cold, narrowed and slanted dark eyes tell her that he was ruthless. He could have killed hundreds of trillions of lives before in cold blood.

When the battle that determined the fate of the Earth until Goku's arrival began, Bulma watched anxiously as the flaming haired man remained on the sides while his men do all his dirty jobs. It was not until she found that her friends were dying one by one that she realized that the aliens were too much for her friends. First to die was her beloved boyfriend, Yamcha. It upset her so much seeing him lay on the small crater created by the explosion caused by those green disgusting creatures and without life. She and Yamcha were in an on and off relationship for almost fifteen years. He could have been a playboy but she loved him dearly. That was why she was completely devastated and cried her heart out in grief when he died on screen.

Chaotsu and Tien Shin Han were the next to die. It seemed that the huge Saiyan clearly had the overwhelming advantage against the combined forces of the Z fighters. Later, the battle was called in a break. The Saiyans were most likely waiting for Goku's arrival. The live television broadcast of the battle was disconnected after the huge Saiyan blew up the network's cameras and satellites (and probably killed the news crew). She and her friends who were worriedly watching the fight abruptly didn't have any news from the battle. Fortunately, an old fortune teller named 'Uranai Baba', the sister of Muten Roshi, arrived by the Kame House to provide them an insight of the ongoing battle through her magical crystal ball. Goku has finally arrived and was on a fierce battle against the short, flaming haired Saiyan. The huge bald Saiyan was nowhere to be seen; perhaps Goku has beaten him earlier. "Thank goodness," she thought in relief.

Somehow, the clash of the two Saiyans' battle was disrupting the fortune teller's gift to observe the battle and they were once again disconnected.

Later on, an impatient Bulma decided to come to the battlefield along with her friends. Despite the danger she was about to put herself in to, she knows she couldn't let Goku lose or they will all be done for. The enemy looked too much for even Goku could handle. So she took her jet to fly towards the Gizard Wasteland, where Goku and the Saiyan were fighting.

When they were finally close to the site, the master martial artist, Muten Roshi then cried out, "Goku's been defeated! There are also three other weak ki signals and a very powerful and evil one. It seems the enemy has won!"

"What?!" screamed by almost everyone in the jet, couldn't believe what the old man just announced. Goku was defeated? That's impossible!

"Gohan-chan?! What about my Gohan-chaaaaan?!" Chichi suddenly cut in, screaming as she unceremoniously grabbed Roshi by his collar. She was practically yelling at his face.

Terrified of the raven haired woman's ire, Roshi answered as quickly as he could, "I-I-I don't know! But I can say at least they're all still alive!"

"Let's go there to at least try and stop the Saiyan from killing them!" Bulma announced bravely.

When they arrived on the battle's exact location, Bulma realized that the amount of destruction the battle has caused was tremendous. Several rock formations and mountains were knocked off the ground and were reduced to chunks of rocks and debris. Pillars of smoke dust rose on random places. Looking around cautiously, she found Goku, Krilin, Gohan and Yajirobe's bodies, completely out cold on the ground and set her jet down close to them. The Saiyan was nowhere around and she thought that was good. When she opened the jet plane's exit door, Chichi was the first to sprint out with the seemingly impossible speed for a human, leaping away, ignoring her husband and went straight to her son with over exaggerated fret. Bulma and the others go to Goku and Krilin. Korin, a talking white mage cat holding a long wooden cane, claimed that all four of them were still breathing and just unconscious, much to everyone's relief. They decided to bring them to the nearest hospital possible.

As she watched her friends carry the four unconscious warriors inside her jet, Bulma wondered where the Saiyan went to. He most likely went somewhere and started to kill the humans. But considering her friends not worried by any dangerous attack somewhere on Earth, maybe he just went on some place to rest. The Saiyan probably took damage too.

When the blue haired woman was about to go inside her jet, a cold voice abruptly came from behind her.

"Hello there."

She quickly turned around, taken aback and found him staring right into her with a delightful yet creepy smile creeping over his face.

"… It has been a long time, my dear little Bulma."

He was certainly handsome, but his evilness crept over his entire presence, just like a devil incarnate. His hair all stood straight up on his head in a flame shape. His wide forehead revealed a receding hairline and widow's peak. His narrowed and slanted eyes under those thick brows were the darkest pair she has ever seen. He stood before her, his muscular arms across his chest. He was clad in battle worn blue jumpsuit, white and gold armor, and pair of white gloves and boots. Her fear of him on her first sight of him from the television screen earlier was nothing in comparison to the fear she was feeling when she finally met him in person. His presence alone crept her out, sending chills of fear across her spine. How he knew her name was beyond strange. She let out a scream of fear as she quickly sprinted towards her jet and found out that she cannot open the door. Her friends inside found her and what made her so frightened and were also terrified for their lives. Bulma screamed for help, while her friends inside tried to pry open the jet's door but they could not, as if the door was transfixed and will never open.

The Saiyan watched as she and her friends panicked with the clear amusement of a sadist. He was using his telekinetic powers for them to unable to pry open the door. He let out a cold, dark chuckle as he mused out loud, "I wonder what happens if I blast that stupid vehicle with this?" he raised his right index finger and pointed it towards the jet. A purple spark of ki began to form on his fingertips.

Bulma saw what he was about to do and panicked, "What? No, stop that, please! Don't kill us, please!" she pleaded, raising her hands and waving them at him as if to surrender.

The Saiyan raised an eyebrow at her and decided not to blow the jet up along with the people inside. He dissipated his ki and put his finger down as he beamed a smile at her. Bulma was flabbergasted he did what she asked of him willingly.

The Saiyan crossed his arms across his chest plate. "My, my, I wonder how they were able to get out now," His eyes were lit with amusement.

Finally, Roshi got a plan. He told Bulma to draw back and blasted the door with a Kamehameha blast. The door flew off of its hinges, but obviously the jet would no longer be of any use. At least, everyone on the jet was finally free and safe. Only the Saiyan was not amused with what occurred and he just let out an uninterested sigh. Bulma hastily took her capsule case and summoned a plane from her Hoi Poi capsules. She and her friends went inside the plane as the Saiyan just watched on. When the door was closing, a gloved hand unexpectedly shot out of nowhere to prevent the door from shutting. Almost everyone within the jet became terrified.

"Wait," the Saiyan said as he peeked on the door with that sinister smirk of his. "Let me come with you, too."

"Eh?!" Everyone gaped in absolute disbelief.

"And what makes you think we would let someone like you to come with us! You killed our friends, almost killed the others, tried to kill the people of Earth and tried to destroy our planet?!" Bulma barked back at him.

"I didn't," the Saiyan told her in a defensive manner, "Kakarot, his brat, baldy and the pig were still alive, see? I didn't kill them."

"Who knows you would do that now?!" Bulma snapped back.

The Saiyan pouted and was clearly upset by her doubts. "I won't. I'll never do it. I promise you, Bulma."

"Do you expect I could just trust an enemy like you? And just how did you know my name?" Bulma demanded at him, her blue eyes gazed over him with doubt.

His lips pulled back to give her a crooked, wry smile. "Trust me, I know everything about you, Bulma," He answered smugly.

Bulma shrugged, completely freaked out. No way! "H-how come? Y-you're a Saiyan from another planet, right?"

"Of course. Just like Raditz and Kakarot, yes."

"How come you know of me? A-are you actually stalking me while you were not on Earth?"

He raised a brow, his eyes playful, "Probably?"

Bulma shrugged again in fear. An alien stalker?! This son of a bitch was stalking at her?!

"So, can I come in?" He asked once again.

She just stared at him with a freaked out look, unsure whether she should abide by the Saiyan's wishes or not. After a few seconds of thinking over it, she opened the door for him. Her friends panicked.

"Bulma, you're not serious to let him in?!" Oolong screamed.

"If I don't then he might kill us all anyway if we leave him."

The Saiyan came inside and gave her a rather amused smile. "Thanks," he told her. Bulma swallowed fearfully, clearly she was still afraid of the man's maleficent presence near her. Then her fear climbed higher levels when he unceremoniously sat on the seat next to the driver's seat, still smiling at her.

"I can sit here, right?" that was not meant to be a question, the Saiyan didn't wait for any answer from her and just sat in there without any permission.

Bulma's hands were cold and tensed on the plane controls. The Saiyan saw that and looked around to find that the rest of the Earthlings were trying their best to stay out of his way as best as they possibly could, almost comically trying to glue themselves on the far wall away from him as possible.

He let out a sigh and then he told them, "Hey now, just relax. I didn't come here to kill you or anything."

"You expect us to believe that?!" Chichi screamed back, protectively hugging Gohan tighter on her arms.

The Saiyan flinched at her voice before rolled his eyes. "I would have started killing all of you earlier if I wanted to, but I didn't, did I?"

"But aren't you here to purge all life on Earth? Raditz said that you would!" The short shape shifting pig named Oolong asked.

The alien shrugged his shoulders, "Probably, yes," he answered, causing the others to squeak in terror. "But I changed my mind. There is something much more important than that. I was looking for… something…"

"The… The Dragon Balls?" Puar asked, fear evident on the blue rabbit's voice.

The Saiyan pressed his lips on a tight line, looking away. "The Dragon Balls are useless. Nappa killed Piccolo so those things aren't any use to me anymore."

With that revelation, Bulma's head quickly turned to the Saiyan with huge, disbelieving eyes. Piccolo was killed? The Dragon Balls are now useless? How the Saiyan knew that Piccolo has something to do with the existence of those magical balls she didn't know, but the pain of realizing that she won't be able to bring back Yamcha hit her feelings hard and she began to wail loudly. The Saiyan flinched at her crying voice.

"Hey, stop your wailing. It would be much better if those weaklings were dead after all." The Saiyan told her without any sign of sympathy.

"Stop talking like that, you monster. Waaaaaah! You killed my Yamcha, and now – eeep!"

Bulma was cut off with a shriek when the Saiyan abruptly grabbed her arm and glared at her real deadly in the eyes. His hand on her was painfully gripping her arm like steel. Tears were still streaming on her wide, fearful eyes. The Saiyan was visibly angry, the cold dark eyes burning with fury. She didn't know what made him suddenly so mad but she was certain that she was going to be killed. Just as she thought, this Saiyan isn't someone to simply trust to. And she was a fool to let him in.

"Don't you ever dare mention that weakling's name anywhere near me," he growled warningly at her. Then he leaned towards her to put his lips near her left ear. Bulma shuddered in terror. She could feel his warm breath in her ear, sending goose bumps all throughout her body. "You only belong to me, and no one else," he whispered, causing her to squeak out of fear.

What? What is this creep talking about? She only just met him and he wanted her to be his already? Is he crazy?

The Saiyan chuckled darkly as he pulled away and returned to his seat. His cold angry features melted into the sweet smile he had earlier.

"Oh well, I'm here to help you bring them all back anyways." He said. "I'll give you the details later, why don't we take Kakarot and the others to the hospital first? I can drive if you cannot do it, Bulma"

Bulma snapped out of her fear and swallowed, "No, no. I can do it."

Bulma drove her plane towards the Sun Wukong Hospital on the West City. Goku, Gohan, Krilin and Yajirobe were soon taken care of by the doctors and nurses where she and her friends brought them. The Saiyan remained waiting on the plane, but his senses were all focused on a certain energy he would never ever let go.

When Bulma returned to the plane alone, she asked the Saiyan how he plans to help them get Yamcha and her dead friends back to life. The Saiyan answered so casually at her,

"Piccolo is actually a member of an alien race called the Namekians who lived on Planet Namek. From what I heard, Namekians are very well talented in using magic or creating magical items so there's no doubt that those Namekians on Planet Namek also have their own Dragon Balls. We are going in there to gather the Dragon Balls and wish Piccolo back to life so the Dragon Balls on earth will also be revived. But be warned, Frieza, the universe's most feared tyrant is also on Planet Namek. I will be coming with you just so I can protect you from him and his men, and then I can defeat him with my own hands this time. So you don't have to fear anything, I will be protecting you no matter what." Then he let out a sweet smile at her.

She looked at the Saiyan with doubt and fear, silently wondering why he was actually helping them with this. And how did he know about the Dragon Balls?

Bulma asked him, uncertainty in her voice. "W-why are you doing this?"

The Saiyan shrugged, "Nothing, I guess. I just want to be with you to know you better, Bulma."

Bulma's teeth chattered. Just what kind of creepy stalking person is this man? Why did he know her name?

The Saiyan was still staring at her. It was obvious to him how freaked out she was after all considering her facial expressions, her body reacrions and the smell of fear radiating off of her. "Maybe you are wondering how I know of you." He finally said after a few tensed seconds passed between them.

Did he just read her mind or something?

"Do you remember the scouter Raditz had that you actually took? That thing can measure power levels and find ki sources. That thing also served as a communicator."

What? A communicator? How come she didn't know that?

"Yes, I heard every word you said every time you turn the scouter on, and hearing the vain praises you comment on yourself has piqued my interest while I was travelling to Earth, that's why I know of you." He revealed. "Oh, by the way, I forgot to formally introduce myself. My name is Vegeta, I am the prince of all Saiyans and the Planet Vegeta, the most powerful and ruthless warrior in the entire universe. And Bulma Briefs, I am here to be your boyfriend whether you like it or not."

Bulma's mouth went agape. And her eyes widened in complete disbelief. He's crazy! What a total creep! Who would want a monster like him as a boyfriend? And why did he choose her out of all people?!

He was staring at her with that ridiculously amused smile of his. How does he think he can have her just like that?

Bulma swallowed as she stood up and backed away from him, Vegeta's eyes never leaving her. She was shaking her head fearfully. "N-no, I can't." she told him stammering. "I - I have a boyfriend, for goodness sake!"

"Well, he's dead now so I guess I can have you now," Vegeta stated as a matter of fact.

"No!" Bulma screamed.

"Why?" Vegeta was visibly hurt. "Ain't I good enough for you?"

"N-no, y-y-you're just… just…"

"Just what?"

"You're creepy…!"

"Not the first time I heard of it. After all I was feared by the entire universe since I can destroy an entire world if I wanted to."

"At least you know the reason why! Wait, what? You can destroy an entire world?"

"Yes, I can, and I did it countless of times before I came in here."

"You're impossible!"

"But I like you so much, you don't have to fear me, Bulma. I'm not going to kill you like the rest."

"That doesn't change anything! Why me? Of all people, why choose me?"

"Why? Because we are meant to be together, that's our destiny." Vegeta said, smiling at the thought of the future.

"No way!"

Vegeta just shrugged. "What? You don't believe me?"

"Of course not!"

"Heh!" Vegeta snorted. He was looking at her in amusement. Bulma shuddered at the way he was peering at her as if he was going to jump over her anytime soon. "Listen to me, we are really meant for each other. No matter what will happen I will make you fall in love with me someday."

"If that is destiny then I will do anything to prevent that from happening, you crazy bastard!" Bulma growled at him bitterly.

"Okaaaay…. Then you're welcome to try it anytime!" Vegeta's innocent eyes and so as his sweet childish voice abruptly turned cold and devoid of emotion, "But I'll have you know that I will not let anyone ruin that destiny, not even death, and not even you."

Bulma saw the cold, unrepentant look of a ruthless killer in his dark eyes and it made her quiver in fear from the bottom of her heart.

Author's Comments: Creepy Vegeta! If you were Bulma? What are you gonna do? Tell me on your comments! 😊