Prologue: The prideful, yet shy centaur and the calming nephilim.

Hello everyone. Shadowflame here. I'm trying to deal with a serious case of writer's block. Do not fret, for I'm trying to find some references for my other fanfics. In the meantime, I'm making this fanfic, after noticing few monster musume stories. I do not own anything from the anime/manga. All characters, except OCs belong to the creator.

It was a warm day in Japan. A young man in his late teens with spiky, black hair was walking to the supermarket. The person has green eyes with a slim yet healthy appearance. He was buying two bags full of food.

"Whew... All this shopping helped made me prepared for the next month or so. Still, I wonder if Smith-san hired me already. My old job hasn't been rewarding for the most part" he thought out loud.

The young adult went back to his home to encounter the person he was thinking of. A woman was dressed like a government agent, consisting of a white dress shirt with a black tie, a black brazier and a black professional skirt. She also had black pantyhose and heels. She was wearing sunglasses as well. Her hair is at waist-length and loose. She slowly moved her sunglasses down, showing pale brown eyes.

"I've been expecting you, Hikaru Aoi. You've been hired in the cultural exchange" the woman said.

"You probably have an ulterior motive of coming here, Smith-san... Other than mooching me for food, what's the occasion of coming here with a serious look" Aoi asked.

"You're as perceptive as my colleagues mentioned... Alright, this is the reason I came here" she said.

A centaur girl appeared and walked slowly. She was wearing a long dark, brown dress with a tight, white shirt with a red ribbon. Her skin was a fair complexion, coupled with her blond hair. Her hair was tied to a high ponytail.

"This girl is named Centorea Shianus. She doesn't know much about the Japanese culture, but she knows the language well. Although we gave her the option for her to find a coordinator, or in her case, master, on her own, she came to us to find someone. Take care of her from now on, Aoi-kun. "Smith said in a teasing tone.

Aoi gave an irritated look to Smith as she left his house. He began thinking second thoughts about her.

'I have a feeling she's either pretty aloof or just lazy... I hope signing up for this program is not a bad idea' he thought.

Aoi then looked at Centorea, who was looking at him with curiosity. He felt nervous, considering the fact she was staring at him with curiosity.

"Um... My name is Hikaru Aoi. I'll be your coordinator in regards about the human world" Aoi said nervously.

"I'm glad to finally meet my master. I shall be with you till the end of time" she said in old style speech.

'That language context seems to be archaic... It's a rare occasion to hear people talk in old style Japanese' Aoi thought in surprise.

"From what I understand Centorea, you're a centaur. Smith-san was able to modify my house so you can walk around the place with no problems" Aoi said.

"I'm glad to have a considerate master. By the way, there's something I want to ask" she said as she looked intently at Aoi's eyes.

"Are you really human" she asked.

Aoi merely looked at her in surprise of the blunt question.

"I am human. Why you asked" He questioned.

"There's something about you that is not like an ordinary human, but you look similar" she said.

'This girl has astute eyes... She may not know it, but I'm not fully human' he thought nervously.

Centorea merely shrugged her shoulders. She looked around the house, finding it easy to live in.

"Feel free to look around the house. You can use the time you have for today to explore around it" Aoi said.

Centorea nodded and began walking around the house. She looked at every room, trying to find which one would be the right choice. She chose the room near Aoi's.

######

Aoi was preparing a vegetable soup. He mainly liked spinach or carrots in his soup. He decided to make carrot soup mixed with a youvalaki sauce. Aoi heard Centorea heading to the kitchen. Despite her prideful attitude, she stared at the pot drooling.

"Ah~... This smell is so good... I never thought you would be able to cook a Mediterranean meal, a Greek meal, no less" Centorea complimented.

Aoi chuckled from Centorea's reaction. He knew centaurs were herbivores and he didn't mind it. He sat down at the table while Centorea kneeled near the table to have her soup. The moment she tasted it, her cheeks made a blush. The taste was heavenly to her. She couldn't contain her voice as she made a soft moan.

"What a heavenly taste... The Greek soup with the carrots give it a tangy taste. What kind of sauce do you use" Centorea asked.

"This kind of sauce is called avgolemono. It's essentially a special sauce or soup that is made by mixing lemon juice and eggs to make the broth" Aoi explained.

Centorea looked at the broth in amazement, finding the taste pleasuring to her.

"How this soup is usually made" she asks in curiosity.

"This type of soup is usually made with meatballs in the broth. However, because of your herbivore nature, I used large pieces of carrots. This soup also comes with rice and special seasonings to give it a good taste" Aoi explained.

"Amazing... Have you been studying the Greek culture" she asked.

"Well... I'm half-Greek as well as half-Japanese. I usually make myself the Greek meals from time to time when I have the chance" Aoi said while scratching his neck nervously.

Centorea giggled from Aoi's answer. She then noticed a small bulge on his shirt, where his shoulders are. With a small touch, it made Aoi flinch.

"Um... Centorea, you shouldn't touch my back like that" he said in a calm yet embarrassed tone.

"I want to know something about you though... Are you really human" she asked seriously.

Aoi sighed. He slowly took his shirt off, revealing pure, white wings. He had a somber look on his face. Centorea was amazed of seeing the wings.

"I'm not a full human, Centorea. I'm a nephilim... A half-angel, half-human being. My father was an angel, but my mother was human" Aoi said.

Centorea stared at his wings. The white wings shined in the light.

"Um... If it helps, I'm not like those nephilim from the Holy Bible... I'm just more human looking than most monsters" Aoi said reluctantly.

Centorea walked up to him and held his hand.

"If anything, why did you stayed as a human rather than being with a coordinator? Also, why did you lie" she asked.

"My kind are not truly well liked to others. I had to keep my human appearance, while hiding my wings by wearing baggy shirts. My life as a human was enjoyable so I decided to stay here in Japan. The reason I didn't reveal this to anyone but you is because I want to entrust you on a deep secret" Aoi said.

Centorea smiled, knowing of his predicament. She understood his reasons to live like a human.

"It doesn't matter to me... I wish to stay with you as my master. Nephilim or not, you're someone who I like to be with" Centorea said with a soft smile.

"Hahaha... I'm working as a coordinator for you, Centorea. If you want to take a walk outside, just ask and I can show you around" Aoi said smiling.

"Well, I wish to stay here to understand more about you. My traveling has been rather long" she said.

"Well then, I'll prep the bathroom for you so you can relax" Aoi said.

"I have another question... Why do you address Miss Smith with Japanese honorifics" Centorea asked.

"It's a custom for the people in Japan to use honorifics. It's more of a polite speech tone. However, because you're not from Japan, I want to address to you as though the people in your home do" Aoi said.

"Then...call me Cerea... My friends often call me that" she said sweetly.

"As you wish, Cerea" Aoi said calmly.

######

Aoi managed to set the bathroom for Centorea. The place was very large, compared to a regular sized bathroom. The bathtub had warm water filled. Aoi left plenty of washing soap for her. He then left the bathroom, informing Centorea of her bath being ready.

"The bath is ready for you, Cerea" he said.

"Ok. I'm about to head inside" she said.

Aoi left the bathroom after testing the water. He then went to his bedroom and looked outside. The sky was turning dark. He was looking at the sky.

'Tou-san... Kaa-san... I never regretted being born' he thought.

######

Centorea was washing herself. She began to think about Aoi.

'He's a calm-hearted person... All he wants is to live peacefully in the human world, along with the extra species. If anything, he's worthy of being my true master and lover' she thought with a blush.

######

Aoi climbed down from the roof and went back inside to his room via the balcony. He showed a calm face, knowing that his lonely days will be over.

'I don't care about the people I meet. It's something I want to do to have good memories in this place' Aoi thought.

He heard Centorea coming out of the bathroom.

"Centorea, I left a change of clothes for you. Don't worry, I made sure the clothes you have will fit you" he said.

"Thank you, Aoi-kun" she responded.

Centorea changed her new clothes. By then, Aoi decided to ask a question.

"Um, Centorea... Do you feel comfortable sleeping without a mattress" he asked in concern.

"Don't worry about me. I'll be comfortable sleeping on the tatami mats" Centorea said, smiling.

Aoi brought a comforter for her, in spite of her sleeping on the mat.

"If you're planning to sleep on the mat, let me provide the comforter for you so you can sleep soundly. You don't want to catch a cold" Aoi said.

Centorea smiled from his concern. She let the blanket wrap around her.

"Goodnight and pleasant dreams, Cerea" Aoi whispered.

Unknown to him, Centorea made a small smile.

That's all from here.

Please bear in mind that I'm working on the other 3 stories so I'm multi-tasking. I'm still writing as we know it.