A/N: This is going to be quite a few chapters long. It's definitely a slow burn with eventual MaixNaru (or as I refer to them, Maru). I never really like starting a story with them together, so this just follows along with that!

This story is a part of the Ghost Hunt Exchange on Tumblr and is written for taemakesmewoozi! Hope you enjoy this slow burn. And trust me, when I'm asked to do fluff, you'll know. So expect there to be fluffy moments down the line.

Also, possible spoilers for the show if you've only seen the show. (Throwing that out there just in case.)

Please enjoy "It's Complicated". :)

Chapter 1: A What!?

Mai had her mind made up. After the last guy broke her heart, she decided that love just wasn't for her. Romantic love was forever lost to her after Shiro dumped her on their one-year anniversary.

'Who even does that?' she had asked herself weeks after. 'Who breaks up with someone on the one year anniversary?'

Mai decided, after a few tubs of ice cream and some bad movie watching with Keiko and Michiru, that she was forever off the market. She'd die alone with thirty dogs by her side.

Keiko and Michiru thought otherwise.

"Mai, it's only senior year!" Michiru said.

"Just wait until university," Keiko said with a smile. "I mean, just imagine all those cute college guys! You'd really give up like that?"

Mai just nodded. "I've been through too much already. Maybe dating and being in love is just not for me."

Three Years Later

"MAI!"

She turned around to see Michiru running towards her. Mai couldn't help but smile a little.

"What's up, Michiru?"

Michiru stopped to catch her breath. "You'd never guess what I just did."

Mai placed her forefinger on her chin and thought for a moment before saying, "You decided to switch majors and join me in the science program."

Michiru laughed.

"No, silly!" Michiru grabbed Mai's hands and smiled. "I found you a guy to go out with!"

Mai rolled her eyes as she slipped her hands from Michiru's grasp.

"Michiru, I already told you. I don't want to date."

"Please? Just this once."

Mai eyed Michiru. "Why?"

She sighed. "Because I just got asked out and I didn't want to go alone, so I only agreed on one condition.

"And that was?"

Michiru smile was borderline mischievous.

"A double date."

"...A what!?"

Michiru smiled. "A double date!"

Mai glared at her best friend. "A double date. Really, Michiru!"

"I've only met the guy like once before! I only even considered it because he's cute…"

Mai rolled her eyes. "Why can't Keiko go with you?"

"Because she already has a boyfriend and wouldn't agree to a double date. You know those two."

Mai nodded. Keiko met her boyfriend, Yūsuke, their first year at university. She's been head over heels ever since. Mai liked Yūsuke. He treated Keiko well and he knew what would happen if he broke Keiko's heart. Mai and Michiru made sure of that the first time they met him. Almost scared the poor guy away.

"Sometimes they're too private…" Mai said. "But you should still ask her before me. At least she would already have someone to go with."

"But I promised him that I had a friend that his friend could go with! So that means Keiko is out of the question. You're the only one that doesn't have a boyfriend or someone trying to catch your attention." Michiru clapped her hands together in a praying manner and bowed her head. "Please, Mai? Just this once?"

Mai sighed as she placed a hand on her forehead. "Fine. But just this once."

Michiru jumped up and cheered before giving Mai a massive hug.

Why did Mai have the feeling that she would regret this?

Kazuya tugged the keys from his pocket, almost anxious to open the door. He couldn't wait to get inside, make himself a cup of tea and lock himself in his room. He still couldn't believe that he let his brother talk him into coming back to Japan to go to university. Kazuya had no need to go. He already had a bachelor's, masters and two Ph.D.'s. At the age of 22, Kazuya didn't see the need for another degree.

But his brother was adamant about it.

"Haven't you ever wondered what school would be like in our homeland?"

"No. I have no need for it, Gene."

"Noll….. Just come with me. You don't have to enroll if you don't want to."

But enroll he did. Once he found out that the university his brother chose had a degree program in the paranormal, he couldn't stay away. And he knew Gene knew that too.

Kazuya opened the door and walked into their apartment, headed straight for the kitchen. After a few moments, he had his tea in hand when he felt someone's presence in the room with him.

"Welcome home brother!"

Kazuya turned around to see his older brother smiling at him. Kazuya knew that smile anywhere. And he didn't like what it implied.

"Soooo…."

"No," Kazuya said as he walked around elder brother towards his room.

"Awwww come on Noll!" Gene said as he turned around, watching his brother walk away. "I hadn't even said anything yet."

Kazuya stopped in his tracks to look at Gene. "You don't have to say anything when that smile you had was enough to know that…"

"We have a double date!"

Kazuya rolled his eyes as he held in a groan. He hated when Gene did this.

"Come on Noll, you've been nothing but school, school, school for the past three months! You need a break and this little date would be perfect for that!"

"Gene, you know I don't date."

Gene nudged his brother's shoulder. "That's only because you haven't met the right girl yet. Come on, just this once. Please?"

Gene shot his brother his infamous puppy dog eyes.

Kazuya looked at him for a moment before turning back towards his room.

"No."

Gene sighed as the door practically slammed shut. He was determined to get his younger brother to let loose for once and go on this date. He thought for a minute what he could do before a light bulb went off in his head. Gene grabbed his phone and sent a text to his date.

Mai was sitting at the desk in her room when she heard a knock on the door.

"Come in!"

The door opened to reveal Michiru and Keiko. Mai groaned as she turned her attention back to her homework. She did not need them distracting her from her research paper. It was hard enough considering that her access to actual parapsychology cases was limited to begin with.

"Maaaaaiiiiiii…." Keiko said, drawing out her name. Before Mai knew it, she was turned around in her chair, looking at Keiko with Michiru behind her. She heard a quick click of Keiko's phone, and just as fast as they entered, her best friends and roommates had left her.

Mai groaned as she stood up and went to the living room to confront them.

"Why'd you take a picture of me?"

"My date asked for one," Michiru said in a matter-of-fact tone like it was obvious that's why they rushed into her room and disrupted her studies.

"Why?"

"So his friend knows what you look like, silly!" Michiru said. "Apparently he's having a hard time convincing his friend to go on this double date."

"He's not the only one…" Mai grumbled.

"Do you wanna know what he looks like?" Michiru said as she and Keiko snaked to Mai's side.

She sighed. "It probably won't change my mind either way… and you're probably going to get his picture wether I ask for it or not."

Gene knocked on Noll's door and opened it before his brother had a chance to deny him entry.

"It's not polite to come into someone's room without permission."

Gene shrugged. "At least I knocked this time."

He made his way over to his brother's desk. Gene gently, but quickly, turned Kazuya's chair away from his desk before quickly taking a selfie of the two and left the room.

Kazuya rolled his eyes at his brother's action.

'He act's like the younger brother….' Kazuya thought before returning to his studies.

Gene would do this stunt quite a bit. Noll never wants to take a picture with Gene, so the oldest brother has found quite the sneaky ways to get a picture with Noll.

He went to take another sip of tea to only find it gone. Kazuya sighed before saving his paper and going out to the kitchen to make another cup.

Mai sat in the living room, sandwiched between Keiko and Michiru. She did not like this one bit. She was against the whole double date and quite frankly couldn't care less who the other person was. Apparently, he wasn't excited about being dragged on a date as well. She could at least sympathize with him.

Michiru's phone on the coffee table buzzed, notifying them that she received a text. No doubt from her date.

She quickly picked up the phone and opened the text message.

Michiru's eyes went wide. First with shock, then with excitement. "Maaii…." she said almost in a sing-song voice. "I think you'll be ok with this date…"

Gene saw Noll walk out of his room and decided that he would put his little plan into action now. He was grateful for his date being able to get a picture so quickly. He recognized the girl with his date in the photo and had a strong feeling his brother would too.

Gene followed him into the kitchen.

"Sooo…. Wanna see what your date looks like?" He said leaning into his brother's personal space.

Noll slightly rolled his eyes at his brother's antics. "If I must," he sighed.

"Just show me!" Mai almost yelled. She was getting tired of Michiru and her excitement about this. Mai just wanted to go back and write her paper.

Michiru turned her phone towards Mai and smiled.

Mai leaned in and her eyes went wide.

'Not him. Anyone BUT him!'

Noll's eyes widened just a little.

"Her?"

Gene nodded.

Noll rolled his eye as he finished with his tea and walked back to his room.

"You excited now, Noll?"

He looked at his brother before turning back to his room and shut the door behind him. A small smirk made its way on his face. He knew of Mai Taniyama.

Quite well, actually.

She was dedicated to parapsychology and the class they shared. He knew that she was fun to mess with from overhearing conversations from classmates about her, but he never had the opportunity to do it himself. And if there was one thing besides parapsychology that Kazuya liked, it was messing with people.

Maybe this double date wouldn't be so bad.

Mai looked at the picture of the broody student from her parapsychology class. His eyes were the same as they usually are when she sees him in class. Dull and irritated.

Next to him was almost the exact copy of him. The only difference was the other guy was smiling while her classmate had a blank expression on his face.

Mai internally groaned. Why him?

This double date was going to be a disaster...