Sneaking on the battleship the Siren was controlling, Ryoken slowly moved closer as the army marched forward. When he got close enough, he stayed behind the throne waiting patiently for an opening. He only got one chance.

Before he noticed, they reached the surface. He already saw how bad things were when the royal guard was taking him to the sea on the back of a dragon but it had gotten out of hand. Everything he was witnessing, it struck him as the end of the world. Even if she didn't order an attack, the lightning storm would erase all living creature on the surface.

"I need to get it back now!"

Grabbing on the throne while carefully reaching his hand out, Ryoken aimed at the trident which was placed next to her. However, just when his fingers were about to touch it, something or rather someone charged at him, knocking him over and pinned him down. It was a boy who looked exactly like Jay.

"How naive." She grabbed the trident and walked toward him on a pair of human legs. "Did you really think I have no idea you were there?"

"I never expected it to be easy."

"Well said." She leaned down and directed her attention to his tail. "This color, you must be the prince."

"I am."

"And what might your name is?"

"You don't deserve to know."

"Don't be so grumpy. I'll tell you my name too. How does that sound?"

"You aren't getting anything out of me."

"You're tough one, aren't you? Alright, how about I killed Aqua before your eyes? I know you and her aren't that close but from what I heard, are you really gonna let your savior die?" She smiled wickedly.

"Ryoken. My name is Ryoken."

"See? That was so hard. As for me, my name is Leviathan, the last existing Siren."

"What you are doing is wrong."

"Oh, save me the lesson, honey. You're the first one who rejected my way of thinking. What is the point of having all these power if you don't put it to use."

"The same reason why those Siren sealed you in that coffin. We only want to live in peace!"

"Funny hearing that from you. You killed a lot of innocent humans with your singing, am I wrong?"

"No, you're right. However, unlike you, I know when to stop."

"You know, you really are getting on my nerve." Kay groaned then bit hard on Ryoken's shoulder. Very soon later, the taste of blood filled the little one mouth.

While the merman struggled with the pain, Leviathan continued.

"It's ashame I can't turn you into a puppet like the others. The one who possesses the Siren voice will naturally be immune to another. But it would be a waste killing someone handsome like you, so..." She smiled while pointing the trident at him. "...have fun being a statue for the rest of your life."

It started to glow as dark energy gathered at the tip. Yet, just before the beam fired at him, Yusaku fell from the sky right on top of the Siren. After that, he wrapped his arm around her neck while reaching for the weapon. However, she wasn't that easy to deal with.

Shaking him off, she grabbed and threw him forward before aiming at him. Luckily, Yusaku managed to dodge the attack midair but the part of the ship behind him wasn't so lucky. It got completely destroy.

Then, with a call from her, water circled around the solders waist and brought them onto the ship. Together, they launched an attack on him. Ryoken wanted to help but he just couldn't shake Kay off. He was strong, too strong. And when it seemed they have him corner, Firewall Dragon blasted them away with a fireball. Even so, they just kept on coming back.

Since she was in a very bad mood, Leviathan focused all her attention on dealing with the dragon on the sky. She didn't even notice the female mermaid was awake.

"Prince...Ryoken..."

"Aqua! Are you alright?"

"Sing..."

"What?"

"Sing...and wake...them up..."

It was then that it hit him. Leviathan used her voice to put every sea creatures under her spell. Which means he could undo the process by using his. Taking a deep breath, he let his voice roam as his clear sapphire started to glow.

Once they heard that, the soldiers stopped, even Kay opened his mouth and slowly moved back. The Siren couldn't have that as she once again aimed at him but Yusaku grabbed one of the solders lance and threw it at her. That pissed her off and the attack was directed to him. Only this time, he was in no position to dodge. Firewall couldn't come as he was trapped in a giant water bubble.

Surprisingly, Aqua made it in time and created a protect barrier shielding them all. However, it drained her of the little energy she had left. She would have fell if the young prince hadn't caught her. Just when Leviathan planned to attack again, a stream of water in the shape of dragon rised from the sea and charged at her. It bit off her left arm which was gripping tight to the trident then circled back to where the human prince and the mermaid were.

After that, it dropped the weapon into her lap while the Siren's pressed hard, trying to stop the bleeding as her legs turned back into fish tail. For some reasons, Aqua got a very familiar vibe from it.

"Jay?"

There was no respond as it turned away and returned to the sea. Meanwhile, Ryoken finished his song and everyone got their senses back.

"Can you..." Aqua gazed at Yusaku.

"Ah, sure." He grabbed the trident then threw it at the mermaid prince "Ryoken, catch!"

As he approached her, she continued to let out curses words. The right thing was to seal her back in the coffin but he decided to put an end to thing once and for all. In the blink of an eye, she was nothing more a pile of dust on the deck. And with that, everything ended.