Disclaimer – I don't own Angel Beats. This is an AU and a harem. I wanted to write one of these Anime style stories for awhile, but try to make it not one of those perverted ones with a ton of sex, though there will be awkward moments. That's what I like are those awkward moments, and the guy having to choose one eventually.

Angel, Mermaid and Devil: Chapter 1 - A Mermaid in My Life

The moon shown through the window onto the lap of Hatsune as she read the picture book her brother had brought home for her. The two lived in a big house with many rooms and Yuzuru found himself having to take care of said house and his sister on his own as his parents had long ago passed away. His sister had never been well since her mother had passed at child birth and their father had tried killing her in an attempt to kill the thing that had killed their mother, but instead ended up just killing himself instead of the children.

"Papa-chan?" Hatsune looked up at her brother, who ended up flinching.

"Papa-chan? What happened to nii-chan?"

"You raised me." The girl looked right at her brother. "But the mama-chan is missing. Since I am twelve now and have only a third of my life I then need three mothers to make up for it."

"That's silly." Her brother shook his head.

"And there needs to at least be twelve siblings as there should have been twelve siblings born sine I was born."

"There was a gap between you and me, you know. I'm only sixteen myself. We're lucky that a distant relative funded us."

"They could have provided a nanny."

"And isn't it twelve births, not siblings."

"What is that supposed to mean?" Yuzuru didn't have the heart to tell his sister about miscarriages. He watched as she looked up at the sky. "Hey! Look! A shooting star!"

M

His sister was of course wanting some ice-cream, so he found himself heading out to the convenience store past the beach. It was when he stopped short on his bicycle and noticed someone down on the shore. He found himself blinking a couple of times before going down to the shoreline, only to stop short upon seeing the tail attached to the person. Letting out a sigh he knew that said person was in fact in trouble so he set out in turning the purple haired female over, just in time to see that the upper half was that of a naked female. "A mermaid... just my luck."

Letting out a sigh, he lifted the female up and carried her home. He drew up a bath and started the water up, letting it run to the full state so that the girl would in fact be fine. He noticed that there was a star like mark on the girls hip area despite the fact it was also covered in scales. This was when his sister opened the door. "Wow. A mermaid! My wish was granted... or at least part way."

"What do you mean your wish was granted?"

Her brother turned to her. "What did you wish for?"

"Three mamas, twelve pregnancies."

Yuzuru found himself paling. He then stood up and shoved his sister out of the room. "What exactly were you thinking? Never mind. I'll go ahead and fix dinner."

"What about my ice-cream?"

"That kind of went out the window when I found a mermaid washed up on the beach." He headed into the kitchen and started cooking. The next thing he knew there was a splash in the bath tub and there was pounding of feet.

Looking up he saw the mermaid standing in front of him, but instead of being a naked mermaid it was now a naked girl. "How dare you touch me human?"

The adrenaline she had felt suddenly gave way and he watched her fall to her knees. A frown came onto the girls face. Letting out a sigh he took the food to the table, noticing the star like mark on her hip. "All I did was rescue you when you washed up on the beach."

"Mermaids don't just wash up on the Beach. Magic has to be involved."

"Like someone making a wish?" Hatsune came into the room, causing the purple haired female to frown. "I made a wish on a shooting star."

"What kind of wish?" The girl frowned.

"I wished that my brother... who I consider to be my papa... would have three mamas and that there would be twelve pregnancies. I figured that would be good repayment for having changed my diapers since he was four. He'll make you a good husband."

"Hatsune..."

The other girl began to shake. "Wait... are you telling me that I'm to be your brother's slave for at least eighteen years? That is how long it takes for a human child to age out!"

"Technically... it should be twenty-two years if each of the females happens to each have four pregnancies. A good thirty years if one girl has all of the babies. Not that I really wanted this. I mean... I did refuse to marry, and father swore that he would take the first marriage contract that came along that would force me into a marriage, but..." The small female wrapped her arms around her body. "This can not be happening."

"Well... if you have a way of communicating with him... you could ask."

"Do you have a bowl of water?"

Hatsune went over and grabbed a bowl and set it down on the ground filled with water. The girl leaned forward and said some words and the bowl glowed. "Father?"

"My dear Yuri."

"Don't dear me! Why am I stuck married to this... human."

"Mermaids are supposed to marry by the time they are a hundred, but you are now two hundred and have refused over a hundred marriages. As the princess of my kingdom you could only make a fool of me for so long, so I swore in front of out people that you would take the first magical marriage contract that came the way of the mermaid kingdom. Unfortunately there is the stipulation of you not being the only wife and the fact both your husband and the wish maker being your masters, meaning you have to obey every command they give you. That's how strong shooting star wishes are when they are in fact granted. If need be, I'll make him order you to produce me an heir. Now be good and go mate with your husband."

The girl suddenly hit the bowl away. "As if! I mean... come on! I've been a good daughter, a good heir... but in reality he wants a male heir. The whole marrying by a hundred years is an old tradition no longer upheld!"

"Don't worry. I have no intrest in making babies with anyone. I have high school to graduate."

"Ahh..." Hatsune frowned at her brother.

"Hatsune... why don't you lone Yuri some of your clothes... though honestly they would be too small for her."