I, Celine Walsh, and my dear sister, Caroline Walsh, became Pregnancy Maidens, who were fertile for merfolk, through the ingestion of special elixirs. We were betrothed to the merfolks through a political marriage.

In my previous life, I had chosen a silver-finned merman who was powerfully built, but rough on the eyes. With him, I gave birth to several black-finned mer-children that were prized pedigree.

Through them, I was elevated to the status of Crown Princess, enjoying a life of luxury and a prolonged lifespan of several centuries.

Meanwhile, Caroline, who picked the purple-finned merman only ever gave birth to red-finned mer-children, which was considered the lowest of lows. For that, she became the laughingstock of the merfolk.

Driven to madness by her jealousy, she took my inner pearl, turned me into minced meat and fed me to the fishes.

When I finally opened my eyes again, I found myself back on the day of my wedding.

This time, Caroline quickly chose the silver-finned merman without any hesitation.

Unbeknownst to her, rising to power through her children was not as easy as she had imagined.

The silver-finned merman was a promiscuous and depraved one, the very embodiment of cruelty. His favorite activity? Torturing a pregnant lady…

"Celine, I want to marry the silver-finned Fourth Prince, Sheldon Reeve."

My younger sister, Princess Caroline Walsh, clung to my sleeve, pouting and pleading like a spoiled child.

"I know you care about appearances, so you'll probably go for the purple-finned Sixth Prince, Reginald Reeve, but personally, I think Sheldon is a real man's man."

Caroline looked at me with a playful smile laced with subtle menace. At that moment, I knew she had been reborn too.

Our father, the emperor, had long maintained a strong alliance with the merfolk, and had arranged political marriages between the two races. However, offspring between humans and mermen were rare, almost impossible.

To prevent the bloodline from dying out, our father made a bold decision. He had us princesses take a secret elixir that would alter our bodies to become fertile for merfolk.

In the end, only Caroline and I succeeded.

In my previous life, Caroline had grown up pampered and proud within the palace walls, her standards impossibly high.

She fell hard for the strikingly handsome Reginald and turned up her nose at the rugged, muscular Sheldon, who was not so easy on the eyes.

With a few sweet words, she coaxed me into marrying him instead.

Not long after, I gave birth to two rare, black-finned children which were seen as the highest, most revered bloodline in the entire merfolk kingdom.

It had been over a thousand years since such a child was born.

After that, the next few children I birthed were also black-finned.

The Mer-King was ecstatic, and he named Sheldon the crown prince and I, by virtue of my children, became the crown princess, draped in wealth and power.

As for Caroline, she bore a red-finned child that was considered the lowest bloodline. She became the shame of the royal family and a laughingstock among the merfolk.

Mad with envy, she waited until I was weak from childbirth. Right after I gave birth to my ninth child, she ripped out the inner pearl that allowed me to breathe underwater. Then, she dismembered me and fed my body to the fishes.

I had yet to speak, but I could already feel Sheldon's cold, calculating eyes fixed on me. The merman hated nothing more than people talking about his looks.

In my past life, Caroline criticized his appearance to my face. After she gave birth to a red-finned child, he had her face slashed and tossed her to the lower-class mermen to be 'enjoyed'.

She was doing it again—deliberately baiting him, trying to drag me down with her. What she did not know was that being Sheldon's consort was a fate worse than death.

Sheldon was insatiable. He dragged me to bed day and night, completely ignoring whether my body could take it.

Pregnancy did not stop him. In fact, it made it worse. He even brought in other male and female merfolk to 'join the fun'.

That was how I ended up having nine children in just three years. To him, I was not a wife. I was a breeding tool and a way to vent his twisted desires.

So, if Caroline wanted him so badly after her rebirth, why would I get in the way?

In fact, I could not be happier to let her have him.

I smiled at Caroline softly. "Well, since you're so fond of Prince Sheldon, my dear sister, how could I possibly take the man you love?"

Caroline beamed triumphantly. "Thank you, Celine! This time, I'll be the one to give birth to a black-finned heir. I will be the Crown Princess, and I will be the one to enjoy centuries of power and glory!"

I acted as though I could not understand her ramblings and instead turned toward Reginald.

With perfect composure, I called out to him sweetly. "My dear."

He turned red, looking nervous and a little bashful. "H-Honey…"

Caroline, eager to claim her prize, practically skipped over to Sheldon as she grabbed his arm and cooed, "Honey, I'm your wife now! You have to treat me well, okay?"

"Of course," Sheldon replied, visibly pleased.

While still in the same room with us, the way he eyed her hungrily was already unsettling. That familiar glint of lust shimmered beneath the surface, barely contained.

Then, the Mer-King laughed heartily and sent the two princes off with their new brides to consummate their marriages.

Sheldon did not wait a second. He scooped Caroline up into his arms and strode off in a hurry.

As they passed, she tossed me a smug look and fluttered her lashes at Sheldon.

"Honey, I can walk by myself," she said, putting on an innocent, blushing act.

I smiled back at her.

I hoped she could keep that sweet little facade going once she found out what Sheldon was really like.

After that, I went with Reginald to his estate.

At the entrance, we were greeted by a lively swarm of fishes and young, lower-ranked merfolk. They circled around us excitedly, shouting in unison.

"Our Princess is so beautiful! She and Prince Reginald look like a perfect match!"

"The babies they'll have are going to be gorgeous! I just know it!"

"Yay! We finally have a pretty Princess too!"

For a moment, I just stood there in stunned silence.

I had not expected a warm welcome like this.

In my previous life, when I was forced to marry Sheldon, he dragged me straight to the bedroom.

It was three full days and nights of torment.

From the very beginning, he never saw me as a person.

Noticing the look on my face, Reginald gave a sheepish laugh and said, "They're a bit too excited."

He then called out to the little ones.

"Give her some space. This isn't a show. Go on now."

Even as he scolded them, he instinctively stepped closer, shielding me gently with his arms in case I was jostled.

"Aww, look at that! Prince Reginald is already protective of his bride," one of the younger merfolk teased.

Still, they obediently scattered.

Reginald turned to me with worry in his eyes. "Are you alright? If they bother you, you can have them sent away. They won't dare lay a hand on you."

I chuckled at his concern. "I'm fine. I was just surprised, that's all. It's a nice kind of surprise."

I was very surprised that Caroline managed to find faults despite having chosen Reginald as her husband in our previous life.

After my bath, Reginald gently carried me to bed with the utmost care, as if I were something fragile and precious.

Blushing slightly, he pulled out a small, glowing orb and awkwardly mused, "This is half of my inner pearl. Once things get intense… Those water-repelling pearls you've been using… They'll lose their effect.

"In our merfolk tradition, when we marry a human, we offer half our inner pearl so our bride can breathe and live underwater safely."

I tilted my head to look up at him, feeling a warmth bloom quietly in my chest.

Reginald was nothing like Sheldon.

In my previous life, I did not know that I needed my husband's inner pearl before getting intimate.

Sheldon did not care to tell me. When my water-repelling pearl failed and I began suffocating mid-act, he just stared, watching with sick excitement as I choked and thrashed.

The more I panicked, the rougher he became.

Only when I was on the brink of death did he finally toss me a piece of his own inner pearl. It was foul-smelling and putrid, just like the beast himself.

However, Reginald's pearl was different. It was beautiful, clean, and warm to the touch.

I lifted my chin and swallowed it. As I did that, my tongue brushed his fingers by accident, and his entire face went crimson.

Then, clumsily, he began to undress me. His eyes paused when he caught sight of my long, pale legs, and he froze like he had been struck dumb.

"Ugly, aren't they?" I asked quietly.

Some mermen were disgusted by human legs. Sheldon had called them grotesque once. They were the most repulsive thing he had ever seen.

Reginald panicked. "No, no! Not at all! Your legs are… Beautiful! So stunning that I… I forgot how it even works between humans and merfolk!"

I blinked. "What?"

He stammered, flustered. "I mean… I forgot the instructions in my love manual…"

"You have a manual? Where is it?" I asked, trying not to laugh.

He looked away guiltily. "It's… It's under the bed."

No wonder his face was red.

"Go get it," I said.

"Huh? Why?"

"In case you forget again. You can read and learn on the job."

It was no longer just his face and ears. His whole body was flushed, hot to the touch. His scales shimmered and fluttered open uncontrollably.

He was clearly inexperienced. No matter how many illustrations were in that book, he was too nervous to get through it.

In the end, he just held me close and whispered apologetically, "I'm sorry…"

I smoothed the crease between his brows. "It's alright. We have all the time in the world. There's no rush."

Reginald knew I was still wary, so he did not push me.

Instead, he started taking me out every day so I would not feel isolated in his estate. He wanted me to see the underwater world for myself.

In my previous life, all I ever saw was the cold, towering palace of the merfolk—grand and intimidating.

However, walking through bustling underwater markets, I realized how narrow my view of this world had been.

I met other races, made friends, and laughed freely for the first time in ages.

It was one of those new friends who told me the news that Caroline was pregnant.

Apparently, after three days and nights of consummation with Sheldon, she conceived—twins, no less. The fish doctors confirmed it.

I was not surprised.

As a Pregnancy Maiden, she had enhanced fertility from the elixir, and Sheldon was not one to know when to stop. It would have been a miracle if she did not get pregnant.

"Celine, my father wants us to attend court."

Reginald took my hand and led me to the Mer-King's hall. When we arrived, Caroline and Sheldon were already there.

Caroline looked unnaturally flushed. Her belly was already swollen.

The Mer-King beamed with delight.

"As expected of a Pregnancy Maiden raised by the human Emperor! Well done, Princess Caroline. Now, Princess Celine, you'd better catch up. The palace could use a few more of my grandchildren."

Caroline stroked her belly with exaggerated care as if it were cradling treasure.

"Your Majesty," she said sweetly, "my husband and I are so deeply in love, and we both adore little mer-children. Why not let me take on the responsibility of bearing them all?"

Then, she turned to me, her voice syrupy and smug.

"Celine took six months to become a Pregnancy Maiden, yet I only needed three. I guess my body's just naturally more suited for it. Maybe we shouldn't burden her anymore."

Sheldon, ever hungry for the throne, chimed in, "Father, however many heirs you want, Caroline will give them to you."

The Mer-King laughed heartily. "Very well! I like Princess Caroline's suggestion."

Reginald frowned and stepped forward. "Father, it's not her fault. If anything, it's mine. I failed to please Celine."

I did not care about what the others said about me, but when I heard Reginald blame himself in order to protect me, I teared up a little.