Sinfull Life With The Strongest System

One Piece world, almost six years later.

Inside the palace in the holy land, where the Celestial Dragons are no better than slaves.

Kaya and Vivi were sitting inside one room, facing a blonde little girl and blue-haired little kid; both of their eyes' colour was sky blue, just like their father.

There were another two. One was a black-haired kid, with his mom teaching him history. And other was a green-haired girl who couldn't fit inside here, because of the genes of Sea Monster and human inside her.

It was night, the usual time for the story before bed.

"And so, he saved the samurai world from the Evil Dragon, ended up at the great terror, and ruled the world from behind. No one knows about him, but even the world didn't know how the dragons stopped their acts.

"But mysteriously, at his age of 17, he vanished, like he never was here. His beloved ones looked for him. There was no trace...

"only red blood on his thrown," she didn't say that part out loud.

"Wow, mom, again, I want to hear this story again." The little girl said, her eyes shining.

"Hey, Luka, this is the 50th time I'm reading it." Kaya put her hands on her h.i.p.s and looked at the girl, frowning, and resisting the urge to leave a cry.

"Well mom, I thought it was your favourite story, you always smile when you tell me about him... except the last part." Luka said, sounding a bit sad, "your face always change when you say the last part. Like you are about to cry."

Vivi, who was making the 5 years old son sleep, turned her face and said, "I'll get out. I need some air."

"That because it's the saddest," Kaya said, looking at Vivi,

"Then, why don't you change it."

"I wish I can." Kaya smiled and messed with her daughter's hair

"Why," Luka asked frowning, "you can just say, he came back."

"Why... Ha...That's a really hard question." Kaya lowered her head

Kaya didn't know how to tell her daughter that the vanishing person is her father, who is six years, never appeared. They looked at his trace in every corner in this world, but he wasn't there.

Kaya had suspicious. When Lucas vanished that day, the only thing that was left was blood. She tasted it and knew it was his, but she didn't tell the other. From that day, she had kept the burden to herself. Each night, she would think if something bad happened to him.

Kaya sat on the ground, hug her legs, and started crying. It wasn't a rare sight here. Even after much time has passed, still, this part would always get her.

"It's okay mom, one day you will gate inspiration."

Luka hugged her mom and said, "Don't cry. Make a happy end."

*Sob*

"I can't."Kaya said, "you look just like him. All of you."

Luka stood next to her and patted her back. The two looked very similar.

Suddenly, Luka felt a hand landing on her shoulder, and she turned to see who.

"Your mom needs to become a better storyteller," a male voice said.

A tall man who looked to be in the middle of his 25 was standing behind her.

He was wearing a black long coat, black pants, a black katana was on his waist.

His blonde hair seemed to be spiky and quite long.

He looked around, to Kaya, 'nothing changed,' then looked down to the confused girl.

'Maybe I picked up the wrong time... how much was it the last time I was here, a hundred year, two hundred?'

Kaya suddenly snapped back to reality, though she had Haki, she couldn't sense someone here.

"You!" Kaya lifted her head, saw him, and from one glance, she recognised him, "Lucas...Am I dreaming."?Kaya looked in a daze in front of her

"No doctor. Try to pinch yourself," he smiled.

Kaya continued staring at him with daze. Lucas decided to give her some time to adapt to the new reality.

"Who are you, why mom is staring at you like that?" Luka asked.

"She would hug me 3 minutes and 5 seconds later, I know that," Lucas said. "for sure."

He bent down, to the blond little girl next to his feet, and lifted her to his shoulder.

Luka wanted to say something as she doesn't like to be lifted by strangers; however, the little girl felt some warmth as she was being hugged like that.

"You look like your father," Lucas left a smile while his eyes on Kaya, who seemed to adapt to the reality. "So, tell me, I heard you like stories."

"Mmm." The little girl wrapped her hand around his neck and hugged him. "Do you know some, man? What should I call you?."

"I know stories, but," Lucas said, "I guess you need to become 18 years old, at least, before I can tell you."

"Why," Luka said, "My mom and father were both fifteen when they made love."

Lucas frowned, "how old are you again."

"LUCAS!" Kaya, all of the sudden stood up and reached with her hand toward his face, "I am old enough."

"Lucas," Luka looked at Lucas, surprised and said, "are you, my father." The little girl didn't know what's going on, but because her mom was crying, she hugged Lucas, "I always wanted to have a father."

"It's okay Kaya, little girl," said Lucas, hugging the two to his embrace.

Lucas turned his head and saw a blue-haired kid, who looked 5 years old and was similar to him.

He was sleeping peacefully.

"I'm sorry," Lucas said lowly. "Maybe I came too late."

"Don't be sorry, tell me where have you been, what happened," Kaya pulled her face from his chest and stared at his face.

Lucas put down the little girl and walked to the corner of the room.

Lucas, his eyes seemed to be half-closed, his skin was cold, "It'll take a long time, many nights and day to tell you that. Come, I'll tell you story as you have never heard. But first, kids, shouldn't hear it. It's not suitable."

Very soon, the door got broken. Many women, around 20, from 165 cm tall to 17 meters entered and stared forward. What attracted them was the name that Kaya yelled.

Lucas turned his face there and smiled, "Hey girls, did you miss me."