"Please! You have to help me!" Miki shouted, bolting forward in her chair.

In the shadows, Rin looked at Miki. She knew her, of course. Rin knew everyone in school. "What's the problem?"

Miki swallowed, face flushing red as she stared down at her hands. "It's...it's Kaito," she said, quietly. "I like him."

Rin began to leaf through the thick binder she kept on her desk, the one that contained personality profiles of people in school, detailed observations of couple behavior, long lists of school gossip, and complicated spreadsheets of romantic data. "Kaito Shion, right?"

"Yes," said Miki, fidgeting. "Anyways, I really like him, but I know he likes Meiko. And Meiko likes him too, Lily told me. Kaito and Meiko in the same club together, Student Council, so..."

Rin's finger paused at the page that held Kaito's profile, and she tapped it twice in thought. "Yeah, I know. Student Council, same year, and they live in the same neighborhood. Meiko and him are childhood friends too, which raises the likelihood of them getting together by twenty five percent, and they have compatible personality types, to boot. Kaito is easygoing and Meiko can be bossy, so he's perfect to put up with her, and even Meiko thinks it's hard to get annoyed with such a relaxed guy," Rin said. "And you, Miki...everything works against you." Rin flipped over towards the page she kept for Miki and began to rattle off the statistics, her mind automatically doing the comparisons and calculations. "You're a year younger than him, you don't share any clubs, you haven't even talked to him before, and I don't even think he knows you exists. If I had anything to say, I'd put you at having a success rate of point five percent."

Miki's eyes widened, and biting her lip, she stared down at her intertwined fingers. "So...it's...it's hopeless?"

Rin laughed and leaned forward, into the light, blue eyes gleaming. "It would be hopeless...if you didn't come to me. Don't worry, Ms. Furukawa. I'll take your case."

-o-o-o-

It was spring, and love was everywhere in Yamaha Academy, with people nervously nursing crushes and writing love letters and doing all sorts of silly things in order to win the object of their affections, and in the midst of this all was Rin Kagamine.

Her reputation and power amongst the female students was immense. Somehow, Rin Kagamine seemed to know everything about everyone, and over time, proved to know quite a bit about how to get people together too, her schemes oftentimes making the most unlikely of matches, be it a nervous nerdy boy with a popular flirty girl, a cool aloof teacher with a mature, precocious student, or a coffee-getting newspaper club gofer with the cool, idolized student council president. As such, Rin's reputation spread, and soon after first year began, Rin had herself a cozy set-up in an empty classroom after school that she would use for her matchmaking consultations.

She had a success rate of one hundred percent. As such, she was hailed amongst the girls as the girl to go to when one had love problems, her exact scientific method foolproof. In fact, Rin Kagamine was known as the Scientist of Love.

For Rin, nothing could possibly go wrong.

-o-o-o-

"Hey, Len, could you help me out?" Kaito asked, scratching the back of his head as he stared down at his feet.

"Sure," said Len. "What is it?"

"Okay," Kaito glanced around the near-empty hallway before leaning forward, voice lowered in a conspiratorial whisper. "I like Meiko."

"Oh, that's great," said Len. "Are you gonna confess?"

Kaito paled and shook his head violently. "What? Are you kidding? There's no way I can confess to her! But...I can with your help, right? You're the relationship wizard, after all."

Len's eyes widened and he glanced around the hallway before lowering his voice. "Hey, keep that down...I don't want everyone to know."

"Well, all the boys know already...come on, you're our secret weapon."

Indeed. In fact, if Rin Kagamine was the girls' best matchmaker, then Len Shimoda was the boy's secret weapon. Though he was only a first year, from the first day of school, he displayed a remarkable ability in getting boys together with the object of their affections, after he left a banana peel on the floor that led to a guy slipping on it and crashing into the lips of his beloved, whom he started dating the day after. News of the event quickly spread, and Len's reputation only grew when he helped another boy get the girl of his dreams the day after.

Unlike Rin, who relied on scientific data for her exquisitely planned matchmaking endeavors, Len was a master of carefully engineered coincidences, displaying an uncanny knack for perfect timing and deep intuition. Within the past few weeks alone, a third of the boys had come to Len Shimoda for help, and just by listening to his careful and precise advice, they had all gotten their loves within a few short days.

Len had a success rate of one hundred percent. Among the boys, his reputation spread like wildfire. In fact, he was so renowned for his special ability, he was referred to as the Relationship Wizard. He could hardly step foot in school without someone asking him to help him out with getting with so and so. Now, Len was a nice kid, but even he had limits, so he spent a lot of lunches hiding from anyone who looked even remotely lovestruck.

Still, Len and Kaito were friends, so...

"Secret weapon, huh," Len sighed, rubbing a hand through his hair. "Meiko, right? Isn't she the treasurer?"

"Yeah," said Kaito, nodding fervently. "We've been friends since we were kids...just asking her out isn't allowed. I can't do that, that violates friendship code."

Len nodded, brow already furrowed in concentration. "Okay. I'll help you out."

This is the prologue! Next chapter will be a lot longer, and it will also take place some time after the prologue.