The italicized part in the beginning is Rin's memories blurring with reality a bit . . .
Disclaimer: I don't own Vocaloid or anything! ^^
Please enjoy, and please review! Thanks for checking "The Unconditional Vow"~ Oh, and it can get really . . . angst, sadistic and such . . . If you're looking for a sweet romance between Rin and Len with a couple of hitches in their relationship, then this is definitely not for you. Hopefully that doesn't scare you away though, because it's got a heavy romance aspect between Rin and Len, as well as other Vocaloid characters; it's just a bit more . . . Twisted.
"Neh, brother, we'll always be together, forever, right?" Rin asked, looking over at Len.
Her twin smiled back at her, replying, "Yes, of course."
She grinned. Taking both of his hands in hers, she pressed, "Promise that we'll be together – until death do us part."
Lacing their fingers together, Len squeezed her hands and answers, "Even beyond death, I promise."
Rin closed her eyes at the thought, reveling in the bliss of a promise forged between two four-year-olds. She felt a light pressure on her lips, soft and warm to the touch, as though the delicate flesh of lips connecting was caramel melting in her mouth.
Opening her eyes, she stares at a pair of eyes identical to hers. The cold feeling of glass pressed against her forehead is contrasted by the heat flushing her cheeks into a deep shade of scarlet.
"Len . . . I love you," Rin murmurs wistfully, touching the mirror with the tips of her fingers. He does the same, perfectly aligning their fingers only at the tips. She can feel a smile faintly curve her lips, the tightening of her chest speeding up the pace of her throbbing heart.
She looks at him then; Len is staring at her, too, with a slight smile. His blue eyes catch the bathroom light in such a way that those blue irises resemble the ocean, so deep, passionate, moving . . . And alive. Very much alive.
"I love you, Rin," Len murmurs in a perfectly matched tone to hers. Then he kisses her lightly on the lips. It's only the connection of their lips, a kiss that seemed so icy cold the first few moments their love was sealed with a peck, but then gradually they can feel each other's heat.
From the other room, voices seep through the cracked door, muffled but still intelligible. The words of the outsiders drift into the bathroom, smothering the air with their unpleasant talk. The most apparent voice is Dr. Yagami's, an old man of 'great' stature in mental health research and diagnosis that she has to visit once every month; recently Len's been kind enough to accompany her to these meetings, though, even if they are dreadful to withstand. Sometimes Len even helps answer those awful questions Dr. Yagami always asks her.
"Her symptoms of Dissociative Identity Disorder have worsened. 'Len' is coming out much more frequently than documented shortly after her brother's death-"
Their mother suddenly cuts Dr. Yagami off, shouting in disbelief, "It's been ten years since that incident! She was only four at the time! It's a wonder she can even remember Len! Why now? Why now does this other half come out? That thing should have never been born, much less revived in our only child as a second personality!"
"That's what I'm trying to figure out-"
"Don't pay attention to such unpleasant matters," Len whispers to Rin, drawing her attention away from their parents' and Dr. Yagami's discussion.
"Ah . . ." Rin sighs, turning back to her brother, "yes, you're right. So, what game shall we play today, Len?"
Len's hand leaves hers, and his cheerful face suddenly smooths over into a cold, impenetrable mask. "Maybe . . . Maybe we could just talk this time?"
Suddenly his face contorts to that of hurt. Rin's chest feels as though a great weight has been placed there, making it nearly impossible for her to breathe. "What . . ." she asks quietly, "what do you want to talk about?"
Len's expression hardens to that of threatening anger. He hisses to her, "That boy from school, Kaito."
Rin's face grows pale from fear at being discovered, and her brother's pallor whitens from the blood draining his face out of hatred.
"He's my friend. Kaito's my friend," she explains pleadingly.
Len slams his fist against the bathroom counter, glaring at Rin with eyes fixated on hers. "Stay away from him."
In incredulity, Rin begins to protest.
Len's eyes hold in their depths something beyond anger: hurt. He yells back at her, "We made a promise! We'll stay together forever. Nothing will get in the way of that!"
Complying, Rin murmurs, "Yes, and-"
The bathroom door slams open, revealing three adults' forms all crowding to see into the restroom.
"Who are you talking to?" Dr. Yagami screams at Rin, alarm contorting his elderly features. His face is flushed from the exertion of reaching the door after hearing Len's outburst.
Rin peers at their parents' faces, neither happy to see Len.
Glancing back at Rin, Len mutters to her, "See? They hate me . . . They hate us . . . Being together. Why is that, I wonder?"
"What-?" Their mother and father, disturbed and horrified, gasp in unison.
"Mother, Father, we love each other!" Rin turns to the adults, desperately trying to make them see the reality of the situation.
"Yes . . . Mother, Father . . ." Len flashes them a smile, "We love each other very much." Len then proceeds to sensually, possessively, caress Rin's waist, and Rin lets out a little giggle.
She bites her lip in embarrassment. "L- Len... Don't do this in front of others..."
"Blasphemy!" Dr. Yagami screams, leaving the bathroom doorway to go retrieve something, a phone most likely.
"Doctor! Please, no!" Their parents call to the old man in unison, advancing on Dr. Yagami with wild, panicked gestures.
Their father continues, "The Kagamine family is composed of several conglomerates! Having a daughter . . . Like that will tarnish our reputation!"
"Yes, Doctor!" their mother pitches in, "we'll pay you any amount you ask for! Just please, just do something to even make her appear normal would be fine!"
"So you're . . ." Dr. Yagami reaffirms questioningly, almost in utter skepticism at the ridiculous request, "bribing me to keep quiet about this?"
"Yes!" their parents confirm in synchronized voices.
Dr. Yagami hesitates, but eventually comes to a conclusion that satisfies him. "Fine . . . I will help; on one condition: an extra five thousand dollars for every visit, which will be increasing to once every two weeks. Also, if this is found out, I had no part in it, you hear?"
"Yes- fine!" their father answers, not even pausing to think about what he'd just agreed to.
The old man looks down at his watch, saying hurriedly, "Alright then, help me with her. I'll admission a sedative as well, to have enough time to prescribe you the medications needed."
Their parents advance on Rin once the doctor leaves the room, each taking grasp of one of her arms and begin lifting her up.
"No!" she screeches, clawing at whatever flesh her fingernails could rake across. She begins kicking at them, and their parents decidedly take hold of her legs. They begin dragging Rin out of the bathroom slowly, pulling her struggling body weight with each heave.
"Rin!" Len screams, struggling violently to free himself to embrace her.
"Len!" Rin calls back, tears streaming down her face.
Their father slams the bathroom door shut, but in the process Rin got ahold of his ankle. Yanking down hard, Rin makes her father lose balance, making him topple to the ground. Scrambling on top of him, Rin grabs at his throat with both of her talon-like hands.
Choking their father, Len murmurs to him, their faces only an inch apart, "You selfish old bastard! You're trying to take Rin away from me – to keep her all to yourself!"
Their father's eyes were becoming red, similar to how they would appear bloodshot.
"Stop . . . It!" Their mother yells, swinging her bag at Len's head. Rin ducks, making her mother miss. Taking the short moment of stun throughout the room, Rin pounces on their mother, pinning her to the ground by her neck. In the background, their father's coughing and gasping for breath act as a clock counting down the Rin's snapping point.
Rin yells, "You bitch! You can't have him! You can't take Len away from me again! I'll kill-"
There's a sharp sting in Rin's neck, cutting her off mid-sentence. Everything goes still, not a noise to be detected by her ears other than an ascending ringing. Dark spots dash across her vision like little insects gnawing away at her eyes. She can feel herself screaming, but she can't hear . . . Rin can feel herself pounding on her head, but she can't see her fists . . .
And then all went as concealing as the darkest night, void of any and all feeling and sense; her consciousness plummets into the unknown abyss known as the embrace of unconsciousness.