Many years later...

Sitting on a boulder which was near to shores while feeling the crashing waves, the old merman gazed at rhe beautiful sunset. Suddenly, he heard footsteps coming from behind along with a very unique sound. He didn't need to turn around to see who it was. His heart had already known.

Sat down next to him, an old man placed the cane leaning against it then relaxed.

"I didn't think you would come, Yusaku."

"Well, I have a hunch I would find you here. I'm glad it turns out to be true."

"How long have it been?"

"85 years 9 months 25 days."

"And here I thought I was the only one keeping trace of time." He let out a small laugh. "Does your queen know you are here?"

"Yeah, she even told me to take the knights along."

"She sounds like a wonderful person."

"She is. How about you?"

"Same."

"I see. Are you mad?"

"About what?"

"That year, if I had followed you, thing would have turned out differently."

"Why would I be mad at you when we both made that choice?" Ryoken gazed at him.

Nearly 81 years ago, after they defeated Leviathan, Aqua spent the rest of the day bonding with Yusaku. It was easy to understand why considering everything she had went through and the young prince slowly opened up to her. He never thought he would get a chance to meet her as Kaidou told him she was dead.

And when the night fell, they partied under the starry sky, both humans and fish people. However, as the sun rised, the two princes said goodbye to each other and returned to their own world.

Even though they loved each other so much, they couldn't be together. They were the future ruler of a kingdom. If they were to run off to be with each other, what would become of their people? Their kingdom? A great king must always be willing to make sacrifice and they really did.

After that, sometimes they would write each other letters and have a messenger delivered them. Yet, that wasn't enough to fill the void in their hearts. Yusaku once experienced a huge stage of depression. Only with his mother and uncle helps did he got through it.

"Won't you sing me for me?"

"I'm old, Yusaku. My voice isn't what it used to be."

"I'm sure it is as good as how I remember it." He grabbed the merman's hand. "So sing."

Gazing at him then back at the sunset, Ryoken started to sing. At that moment, for Yusaku, it felt like time was turning backward to the day they first met. At that very same spot, Ryoken sang for him. That was their beginning.

Holding his hand tight, the wise king's sight slowly became blurry. His journey was reaching its end. With a smile on his lips, words escaped his mouth before his body leaned against the white hair merman completely.

"Thank you...Ryoken...for everything..."

The moment he heard that, tears dripped down his cheeks as he continued to sing. Once the song was over, he gripped that person tight while leaning his head against theirs, rubbing softly as his tears continued to fall uncontrollably.

"Goodnight, my love. Sweet dream."

The end.