Notes: This chapter is purely background on my own OC's. You can read it, glance over it, or skip it entirely. The choice is yours!

It's important to know this fic consists of detailed violence! If you decide to continue, thanks for reading!


It was a cold, rainy night when Terrance decided to tell his daughters about who they were, and where their curse began.

The two teens sat on the couch, a mug of hot chocolate warming their hands. Across from them was their father, who was surrounded in his own cloud of cigarette smoke.

The story was rehearsed several times in his head, but it still sounded off when he said:

"You are Sirens" and, "you're cursed."

After a moment of confused stares, he began to explain more.

Several decades ago, their great-grandmother, who was a full-blooded Siren, fell madly in love with a simple sailor whose ship had crashed. The love was pure, and mutual. Turns out he had a thing for magical beasts. Little did she know, he was already married – or more accurately, endowed – to an Undine.

An Undine who enjoyed placing curses on others for centuries.

When said Undine found out about the affair, and discovered his mistress had become pregnant, she became very angry.

She wasn't even angry that her partner was in love with someone else. She saw it more as anger toward someone stealing something she owned.

In the heat of the moment, out of raw anger toward her thief, she placed a curse upon the Siren.

A curse that punished her for her love, and it would start with their baby.

If her first child was to ever love anyone, even unromantically, the child would die.

The Undine made it a bloodline curse, and would travel through each firstborn child.

She laughed, and thought, "That'll teach her to steal from me."

And then a realization dawned upon her. There are plenty of ways to avoid the risk of love: seclusion, staying busy, constantly traveling…

So, the Undine placed another curse upon the firstborn: a craving of passion and intimacy as soon as they've reached maturity.

Perfect, she thought, this'd make it harder to stay away from love.

This made the Undine happy. In her eyes, it was a sufficient punishment to make their lives so troubling.

And when that first child was born, the Undine immediately slaughtered her former lover and the Siren who stole him. Just because she could.

The Siren's son was sent by other Sirens to the closest human-inhabited island, since he was only a half-blooded Siren, and didn't have his tail.

With the son, they left a book. A very special book his mother had incorporated most of her Nen into. It explained everything.

Fast forward to the son as an adult, suffering the inconveniences of the curse. The book explained to him what was happening, so he found it best to find new partners when his curse demanded it, to avoid the risk of love.

This led to an unexpected child with a woman he knew for a night.

Giving the book to the baby's mother, he leaves. He didn't want to stay and risk love, even if it was toward his own child.

Fast forward to his daughter as an adult. Her name was Renée.

Her mother knows of the curses. Her mother has a plan, albeit a sort of abusive one.

When her daughter began to have the cravings, she hired a man to 'tame' her cravings. This man was Terrance.

The mother wanted to monitor their interactions, and instruct that Terrance must, in no way, be romantic with Renée. Of course, she had to tell Terrance of the curse. She let him glance at the book which explained it.

And he knew what was at risk, but Terrance fell in love.

And then Renée became pregnant.

Her mother wanted to terminate the pregnancy, to end the cursed bloodline. It made sense, but it made Reneé upset.

Terrance noticed how this made her feel, and being secretly in love with her, he suggested she run away with him.

"I promise to protect you, and the child. I promise you'll finally be happy." Terrance told Reneé. He never told her about his love for her, and she didn't love him, but she agreed.

The two ran away to a small but beautiful island, where she was truly happy.

Two months later, twins emerged from Reneé. Seeing her daughters, she discovered something forbidden- because she truly loved them. This caused her death minutes later.

Fast forward sixteen years later, when Terrance told them this story. When he finished, he looked to his daughter, Athena.

"Soon, this curse will affect you," he said, "but that's also where it will end."

He then brought his attention to his other daughter, Nautica. They were twins, and technically, she was born after Athena, but he still felt this curse would affect her somehow.

"You and Athena will find the Undine and end the curse, with whatever it takes."

Nautica's eyes widened, and she found that she was slightly scared of the idea.

"But – how will we find her? How would the curse be undone? And – why us?" The words raced out of Athena's mouth.

Terrance explained in detail what Hunters are, and how to become one. Their access to restricted information and locations was perfect for finding the Undine. Terrance informed them that he, too, was a Hunter. An Information Hunter.

He couldn't give any answer to how it could be undone, but knew there was no other way. No Nen exorcist in the world wanted to dispel this curse when they found out it was made by an Undine. It was almost like signing off on their own death.

He then told Nautica and Athena that they were the only ones who could handle an Undine, since Undines and Sirens were categorized as Magical Beasts. They had the potential to be much stronger than even some of the greatest Hunters. It had to be them.

"When I feel you are ready, I will send you off to take the Hunter Exam. But first," Terrance put out the cigarette he'd been holding, "I will train you both to be strong. Mentally, physically, and with Nen."

Nen?" Nautica and Athena asked in unison.