A/N: Hi guys! Once again, I'm going to make another Diabolik Lovers featuring the Sakamaki Brothers of course, and once again, an OC. She is the Sakamaki Brother's female sibling and this time…Yui will be included in this story but she will make her appearance in the 2nd arc w/c is all about her and might reference in the anime.

Disclaimer: I do not own Diabolik Lovers game and anime.

Warning: Incest, Gore, psychological, slight sexual content and violence.

Eternal Bonds

Chapter 1: Haruna Sakamaki

"We shall draw from the heart of suffering itself the means of inspiration and survival."

Oka-san, do you believe in love at first sight?

A female figure with strawberry long hair tied with a blue ribbon behind her head while approaching the school corridor wearing her school uniform consist of black school uniform jacket, a black deep V cut vest, with a white button-up dress shirt that has frills near her necktie underneath and a white bow showing through the V of the vest with a red bow tied to her neck above the white bow. The buttom of her clothes is a black uniform skirt that ends above her knees with a white petticoat underneath.

Her shoes tap the tiled floor with a long black socks and brown heeled shoes. The girl was very pretty with her enchanting violet eyes that hint of long eyelashes. Her smile was gorgeous with tints of pink on her cheeks while staring at a very handsome young man wearing a male school uniform. He has a messy chocolate brown hair and forest green eyes with pale complexion, he has a serious expression while studying. She was watching him like a 'girl been attracted to a handsome boy' attitude and just looking at him dreamily.

"Ah. Ichiru-senpai is so handsome. I just wanted to eat him." She giggles yet blushed while looking at her human crush. It's been three weeks since she met this human boy in this very school she was enrolling with her sadistic brothers. Looking at his bare collarbone, her vampire instincts trigger and tried to hold back her thirst, "No! I'm not going to drink Ichiru-senpai's blood. I promise to myself that I will never drink innocent human's blood." She mentally scolded herself. She is different from her blood-thirsty maniac brothers of hers. She will never hurt innocent humans.

Actually, she seem not to get along with her vampire brothers especially towards those triplets mainly; Laito, Kanato and Ayato. Out of all of her siblings, they are the worst.

"Oi! What are you doing out there, melon?" She twitched and she probably knows who this person's voice and she sighed. Staring at the boy behind her with reddish-brown hair with green eyes filled with amusement. He wore a his own uniform consist of unbuttoned dress shirt with black school blazer. He also wears black pants with right pant rolled up to his knees. He wears a pair of sneakers and an untied red tie to accompany this look.

"Ayato, Don't you see I'm busy?" She frowned at him while crossing her arms over her chest. That's what she hated about them appearing out of nowhere. Figures

Ayato looked down on her height, and then stared at the human male that his half sister's been devoted. "Hmmph…he's just a mere weak human and I will tear his body apart if I want to." He said arrogantly. Deep inside, he was sick seeing his sister looked another guy and a human at that. If it wasn't for his slight compassion over her then, he will kill that guy for sure.

But the strawberry haired girl glared at him murderously, "You're not going to touch him and if you dare, I swear I'll kill you." She glared at him intently but Ayato didn't mind.

He smirked widely, "You wanted to kill me. Eh?" he leaned his face over hers, "I'd like to see you try but first…" he grabbed her collar and exposing her fair shoulders, "I have to bite you first since I haven't hold back my thirst earlier…" her eyes widen as Ayato's fangs revealed and was about to bite her but then a hand stop him.

"Ayato, how many times do I have to tell you." He pushes glasses behind his red eyes, "Take your private activities in your room? This is a school and it's forbidden to reveal our true nature while we are in the dense of humans." He lectured his younger brother. The reddish-brown haired male annoys while the sister was in deep in relief, thank you Reiji.

"Reiji-niisan." The girl looked at their older brother with both relief and nervous; Despite being well-mannered and values rules and regulations, there is seem hidden dark inside his heart and that makes her very wary about him.

Reiji, the second son, looked at the girl who was his little sister, "And you, Why are you in this lobby? I memorized your class schedule and I think that you are already late in that class." He said in a strict tone. The girl flinched, how come she had forgotten that she had Health class in this hour. Her entire body shivered with fear,

Ayato smirked widely, "It seem that you are in a big trouble now. Lil' sis." He mocked at her while leaving the two behind to roamed around the school grounds.

The girl lowered her head before her brother, "I'm sorry, I didn't mean to…"

"It's too late for excuses, Haruna. Once we get home. You are going to face the consequence of your actions." He said strictly and left the corridor. The female vampire named Haruna was shocked and her heart was continues to pulse rapidly. She was doomed. She knows how deadly her older brother, Reiji.

She then, returned to her human crush but she was dismayed that he was already gone.

Sakamaki Manor

"Eh? Haru-chan, skipped classes? That's rare." Laito commented surprised at Ayato's story, they knew how much Haruna was so focus on her studies yet these past two months, she was rarely skipping class. The triplets gathered as well as Shu and Reiji in the living hall. The purple haired male was carrying a hard stick in his hand and the brothers understand what this situation would be.

Kanato looked at the object on Reiji's hand and smirked widely, "Teddy, I think we are going to witness interest show, tonight." He said excitingly while hugging the stuff teddy bear.

The oldest of the Sakamaki siblings; Shu was leaning against the couch while listening to his earphones while closing his blue eyes.

"She will face her punishment for not obeying the rules." Reiji said in a serious tone. His cold red eyes were gleaming with blood and pain.

Few minutes later, the girl who happen to be their little sister entered the living hall wearing a white spaghetti strap dress that expose her bare neck, shoulders, arms and legs making the Sakamaki brothers tempted to bite her fair and smooth skin.

She tied her hair in a loosen tied that her strawberry locks were rested on her left shoulder. Ayato's green eyes gazed of how beautiful she is despite being his little sister.

"Bend your knees." He commanded. The girl obediently kneeled before Reiji.

Reiji looked at her with a strict look, "Give me your arms." He said in authoritative tone. The girl obliged and positioned her arms straightly with her hands form knuckles.

Closing her violet eyes, she winced as the stick sharply hurt her skin leaving a huge red mark on it. Laito and Kanato watches with amusement at the couch as Reiji continues to whipped her many times. Ayato looked at her indifferently, that's what she gets for staring at the human boy earlier.

She bit her lower lip and blood drawing from her mouth. Despite being a vampire, she too felt pain while being whipped but she had to hide her weaknesses in front of her brothers or else, she will be mocked and will be ridicule pathetically.

Reiji's eyes gleamed with sadism as he can see her arms drawing more blood from her skin and the tissues and flesh were visible. He was tempted, he wished to lick those wounds and tasted her delicious blood. But, he wanted more pain.

But Haruna couldn't handle it anymore,"R-Reiji- niisan, please…stop" her stuttered sweet voice making them turned on including Raito who was staring at her delicate wounded arms.

Reiji's poker face still remained, "No. As long as you understand that defying the rules of not skipping classes is unforgivable. Do you understand?" the older brother said with a strict tone. Haruna doesn't understand her situation, why does her older brother, Reiji did this to her? Why is it everyone else didn't come to her rescue and just watching and sitting on the couch and smirking sadistically while she was been whipped in front of them?

Her thoughts drifted to Ichiru-senpai. That human boy she was crushing on ever since the first semester. His gorgeous and tender smile and the way he looked at her with care on his eyes makes her heart fluttering with happiness.

Do your best,Sakamaki-san.

She never felt this kind of feeling before ever since she was resided with her evil half- brothers.

"Ichiru-senpai." She thought. For her, Ichiru-senpai was her strength and role model. Despite being treated like this, she winstand all of it.

Her expression changes with determine look making the triplets and Reiji surprise, how come such girl like Haruna endures such pain like this?

A wide grinned plastered on Reiji's face, "Very well then, so you choose to become rebellious towards your older siblings and our father?" his red eyes darted on her fair calves and begun whipping it earning a loud scream from the girl.

Kanato's psychotic look widens with pure excitement, "That's right. That's the voice I was looking for!" he laughed. Ayato averted his gaze and stood from his seat, "Where are you going, Ayato-kun?" Laito raised a brow.

The reddish-haired male glanced at him, "I'm bored." He suddenly disappears.

After that, Reiji cleaned up the stick for unnecessary blood from his victim. The girl suddenly collapses after those harsh whipped on her calves and now, she was lying on the carpet floor and her eyes were heavy and sobs. Laito stood from the couch and approaches Reiji, "Ahh~ I was entertained by that. Thank you, Reiji-kun." He said cheerfully but he was ignored by his older brother.

Reiji pushed his glasses, "Do what you wish for her." He said in a stoic tone and leaved the living hall. Kanato grinned excitingly and looked at his teddy, "Did you hear that Teddy? He said we can do whatever we want to Haruna? Are you excited? Tell me…you are!" his sadistic purple eyes widens. He will tear off her clothes and licking those wounds of her filled with delicious blood.

Laito smirked and bend down to the sobbing girl, "Aww, don't cry ~" he grabbed her slender broken body with his corrupt hands. "Reiji-kun was no longer here so be at ease now~ Ne?" he said playfully.

Be at ease? How come she was going to be at ease when he, Laito was the worst one out of her siblings. She can feel his fingers running all over her chest and the other one was on her wounded arm. He is a pervert. Who knows? He was going to do something to her body and she didn't like it. She wanted to move her body but her legs were weaken and she was helpless.

"Ah. Haruna, your blood in your arms were dripping on the carpet. What a waste." He said in a timid voice. Kanato, he was the sick one as she can remember. In the past, She was nearly on death state when he stabbed her on the back with a knife and he was licking her blood greedily

That was the most horrible experience she had encounters with him and gladly, she was still alive thanks to her biological mother's ability to heal instantly.

Laito chuckles while looking at her battered form, "Kanato-kun, why don't we clean up her wounds in an intimate way." His green eyes stared at her chest and then to her wounded areas, "That would be fun right?"

The purple haired boy nodded, "Haruna, please stay still. We are going to help you." His tone making her sick. Then, both boys were licking her wounds as if they were addicted on her blood.

"Ah~Your blood is incredible, Haru-chan~" he said while moaning. His fangs suddenly pierce on her shoulders and drinking all of her blood with his heart's content. He gazed her pain expression on her beautiful face, "I never thought you are this beautiful while being hurt, Haru-chan." He licked his lips, "It makes me wanted to touch you…once more." He whispered to her ear much to her shock.

Kanato licked her wounded calves and slurp the excess of her blood, "It's really good to have a cute little sister like you to be messed up." He chuckles darkly. To them, Haruna was a plaything for them from out of boredom and they were glad that their father let her stay with them in this mansion …forever.

While they were feasting her body, Haruna was staring at the ceiling with an empty expression. She was getting used to this sexual advancement towards her own brothers especially the triplets. It won't matter because…she was going to die anyway.

Closing her eyes, she imagining the image of her dear mother who resembles her a lot. Her kind face and her beautiful violet eyes makes her senses calm.

Oka-san, Please help me to endure this hell.

A/N: Okay, that was scary yet disturbing at the same time. I will try to write a POV of Haruna but that was not my writing style on making POVs. :(

Next chapter will be soon…

See you…