Sinfull Life With The Strongest System

Teaser: How to use the most useless thing.

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Lucas and Viola were dressing after five rounds of s.e.x, Lucas came more than 8 times – Since Viola knew how to tease him – while she lost count on the second round, suddenly, they saw the door flying away. 

Lucas, who just put his boxers, turned his head to see Riku and a bunch of other soldiers staring at him. 

"Father, what are you doing?"  Viola looked at her father, the King, and quickly hid her half-n.a.k.e.d body behind Lucas, feeling embarrassed. "Why Didn't You Knock The Door?" Viola yelled. 

"Viola..."

Everything became clear now, to the king. The source of the screams he heard from earlier came out because the crown princess was having s.e.x and not because she was in danger. 

His eyes then swept down to Lucas. He then saw the bulge, with the head visible a bit through the boxer's edge from size, even soft, and opened his eyes widely. Not only the king, but the soldier that came here to assist could see the trace of Lucas's D.

How can a man have such a thing, especially since Lucas wasn't that big? If he was like one of those +5 meters guys, it would understand. 

Viola behind him, pressing her chest on his back, looked happy. 

The soldiers gulped their saliva. No wonder that they heard screams—poor Viola, she must have suffered, as she could barely stand with her shaky legs. But still, this is an unacceptable act. They raised their weapon and looked at their stunned king.

"Oy, king, I don't like when a guy stares down," Lucas said, his tone was firm, and his glare was cold. 

Since he had conqueror Haki and level 10 above that, Lucas had decided to use it for the first time. 

"You, you slept with my daughter."

The King said, shaking, envying Lucas, and feeling pity for his daughter since she had to take that monster inside her... From her screams that filled the palace, he could tell that she had suffered a lot, or enjoyed a lot. He looked at Viola, to see that her facial expression was like the drunks.  Poor girl, she can't even stand properly. 

But seeing that she still pressing her curves against the half-n.a.k.e.d man in front of him, made him feel like any father would do. 

He looked at Lucas and greeted his teeth before he said, "You will –"

"Father, No, I love Lucas and I can't live without him," Viola said firmly. The D level 19 and the heavens she felt, made her make her decision to go against her dignity as a princess. "If you say 

The King was about to say something to Lucas, such as: even if you are the hero of the country, this won't pass peacefully and you will take responsibility.

"Get out," Lucas said with a cold and calm tone. 

From his body, an invisible momentum got out. The ground shook a bit. The soldiers lost consciousness and fell, feeling their wills crushed. 

Riku was sweating; he didn't lose sentience, but he had felt his lungs getting tight, his breaths stopped, and he needed to turn away. 

Looking at Lucas, who was only 190 cm tall, Riku felt that he was short, and Lucas's figure like a mountain. He felt like his eyes are looking down at him, and he can't do a thing about it. 

(The king is 260 cm tall)

"Conqueror Haki..."

He murmured as he turned and walked out of the room, like Lucas told him to do, and stood there, sweating

Viola was out of the range, but she could see the walls getting cracked. 

"What you did now-"Viola asked as she saw her father acting like a timid guy. But she liked it that way and hugged Lucas from back firmly, feeling secure with him. 

"Just getting some privacy." Let quickly change our clothes."  Lucas said. He didn't like the rude people who don't let him finish dressing.

Viola kissed Lucas on his lips, and then both of them took their time to dress.

At the end, when the two got out, they saw the soldiers sleeping, while Riku had a hard time to breath. 

Viola comforted her father and she said it was her choice, so she would be the one to take responsibly.

Riku couldn't believe that his daughter was the one who said that. 

But thinking about it, what Viola had tolerated, for eight years, when the gang took over this country. To keep her father safe, she became one of the officers of the enemy. Riku would never forget how good his daughter was. Maybe, she was frustrated. She already got old, and it's the time for her to find a man.

She deserved to have what she wanted, but he is still her father and wouldn't want his daughter to get in a man's bed before she is married, or at least, engaged. 

He usually would burst into anger, as any father would do, but Lucas's Conqueror Haki made him, calmer and timed as he stood next Viola. 

Such Haki was stronger than the usual one. 

"You would marry her," Riku said those words with hard. 

Lucas just nodded, like he is the real daddy of the girl. "Sure." He then took with Viola's hand and kissed her. 

Viola was happy by Lucas's action and kissed him back, since the first one made her enjoy, that she didn't mind kissing Lucas back, in front of her father. 

"Cough... brats, I am here.

Riku felt pressure as Lucas was talking to him. 

Lucas, having level 10th Haki, could control it to make a pressure on the person as he talks to. Lucas conquered Riku's will without having made it obvious. 

The King admitted defeat and said with a shaky voice, "Sure, having the hero who saved this country engaged to my daughter would raise the reputation of my family."

Viola was amazed by how Lucas could make a king listen to him, and she hugged his arm. 

Lucas smiled as he patted the king's arm "You are a good person." 

Lucas thought about his life in earth, the time when a major drug boss caught him sleeping with his daughter when James knocked on the door to see his wife and Lucas had to hide in a locker, which he used to.  'Damn it, if I had such power in a previous life, I wouldn't have to run.'

And so, after some speech, Lucas and Viola were engaged together officially. 

Riku, though he was surprised, was a bit happy. His daughter would finally marry, and to a good man above that who was named as a hero.  At least, this way, their country would have the navy in their side... besides, his daughter deserves to have what she wants, and she is an a.d.u.l.t.

Later, Lucas found that he has to stay for dinner.

"Goodbye, father in law."

Lucas had dinner with them, but now, he was leaving, saying he has a job. 

Riku just nodded. 

Viola waved her hand, "Come back soon, or this Mommy will miss you, Daddy."

"Sure, Violet."

And so, Lucas left from the gates of the palace, vanishing into thin air. 

Rebecca was standing aside to her aunt. She looked at Viola's eyes and asked with a tone filled with annoyance, "Aunt, this means, that I have to call him uncle."

"Yes." Viola said, wondering what with her niece's attitude."

"But aren't you too old for him." Rebecca lowered her eyes. The 14-15 years old girl had some tears, "Shouldn't you look to someone from your generation."

Viola quickly understood what Rebecca felt; Viola hugged Rebecca's head to her chest. "Oh silly girl, if you want to be with your uncle Lucas, I won't stand on your way. But..." 

Viola was about to say, he prefers older women. "You are too young. Wait for a year at least."

Rebecca blushed in her aunt's chest and tried to break free, but Viola's arms had great strength, enough to hold Rebecca in her chest.

"What's wrong with you?" Rebecca said. Then she thought about her aunt's words and said," but are you sure." 

"Yep, I think you should wait until you mature more... you are already a too pretty girl, and you would grow to a woman...Do you want me to tell him, I think, since you are around the same age, he wouldn't see you as a little girl if I told him that you are interested in your aunt's man."

"Aunt, are you fine... shouldn't you hold a knife and stab anyone who thinks about your fiancée." 

Well, she liked Lucas, but her aunt's words were weird. How Viola can offer to share a man she just engaged to.  

She must be messing with her.

"Fufufu... well, you see..." Viola laughed. She went to Lucas despite knowing he has many girls already. What's the harm if her little niece wanted to be her sister? 

Viola tactic is simple. If having three girls next Smile Factory was enough to bring Lucas, who still have 5 in the marine, there, then having someone additional in the palace may bring Lucas to the palace. 

Usually, she wouldn't think like that, But Lucas wasn't an ordinary man. And her experience with him, made her feel a deep love for Lucas, that she is willing to share Rebecca with him. Well, maybe her poor niece would become happy like that

"Aunt, stop teasing me." Rebecca thought that her aunt must be teasing her. That's why she turned and humped with her cheeks red. As she walked away, she said, "Remember what you said, Aunty. Royal people don't take their words back."

Rebecca blushed and ran. 

***

Meanwhile, Lucas made his way through Dressrosa and went to check Robin and Mikita, along with the process of fruits. Caesar said that 80 Artificial Devil Fruits would be ready by a week. 

After that, Lucas saw Yamato approaching him. The first thing she asked was if Lucas had read the book she gave him. Lucas smiled wryly and told her to take care of herself before going to check Sugar, Monet, the maid Baby 5, and finally, the miserable Doflamingo. 

Lucas, after looking at the toy, had finally made up his mind. 

Though Doflamingo is no longer danger, even if he returned to human (he lost his fruit), he still a valuable source of information. Lucas can ask him questions whenever he wants, and Doflamingo may know the whole underworld of this world. 

Lucas gave him a chance. Doflamingo would write everything he knows at a book; otherwise, Lucas would undo the spell and hands him to Big Mom, saying that he is the one who took Caesar Clown from her. 

Doflamingo cursed Lucas back and said, "Even though I turned into a toy, I'm still the Joker. My body only knows how to clean a toilet, but the contract can't make me do something like that."

It was clear that Doflamingo was asking for death. 

Monet was about to kill him, as her arm turned into a snow blade that became ink black, but Lucas stopped her. 

"Fine, go down to the city, and buy coffee with 3 exact centilitres. If the seller missed, go and find a way to earn berries, then, ask him again and again until she sells you the exact coffee I want."  (Don't ask how he knew it's she.)

Lucas said as he gave the toy some berries. Doflamingo would suffer tonight. 

"Yes, master." Doflamingo had no choice, as Sugar made a detailed contract when she turned him into a toy. He hated his life; he hated what Lucas had done to him. And so, he left to buy the Cola for everyone. 

"Oh, only when you changed your mind, you can stop."

Lucas then left. 

Both of Monet and Sugar said goodbye. 

The two sisters had their relationship improve after living together for a long. Though they have competition, fights between them, they are still a family. That appeared as the vicious Monet saved Sugar when Lucas took Doflamingo, but she still messes with her. 

-x-X-x-

By the end of the day, Lucas had gone to his base. 

And then, he got a surprise.

The HQ sent him a report. 

It was a signal that called everyone from Admiral Rank to symbolic Admirals and strong Vice Admirals to finish their jobs quickly and come to the HQ by ten days.