Start by Eating Jake Jake no Mi

"....." 

Rias was in a daze for a while before she rejected Masa's offer without hesitation. 

"No!" 

She thought that Masa wanted to apologize, repenting for his rude behavior (almost killing all of her servants), yet unexpectedly, this guy never gave her respect and even provoked her again and again. 

"Koneko is my servant! I treat her like my family! I won't give her to anyone! And, lastly, her name is Koneko, not Shirone!" 

"Do you want to get killed, nyaa?!" 

Hearing Rias' rejection, Kuroka was furious and thought to teach this spoiled girl that everyone wouldn't follow her selfishness just because Rias was the little sister of Sirzech Lucifer! 

At the same time, Kuroka thought that it was a great chance for her to show the result of her hard work with ninjutsu! 

The ninjutsu and other knowledge, especially Haki that was taught by Masa, was amazing, and she didn't think that she would lose even if Rias was together with all of her peerage members. 

More importantly, even if Kuroka might appear silly and lazy, she wasn't a stupid and hard worker, especially when she knew the importance of power in this world. 

For power, she could do anything, and that was why she was glad that she could be with Masa. 

Still, while Kuroka was ready to fight, exuding a dangerous aura that could threaten Rias and Akeno, Rias also felt an intense trepidation, realizing how powerful Kuroka was, but those feelings were nothing compared to the humiliation she felt. 

Masa aside, as Rias knew how powerful he was, why did she tremble in fear facing Kuroka?! 

Yes, Kuroka might be powerful, but she was just Masa's servant! 

So, while Rias was intimidated, she didn't lose completely. "What are you acting like a family for after you have abandoned her?! Did you know what Koneko was about to face at that time?! Don't act like a family all of a sudden!" 

If there was a reason why Masa decided to take Koneko, Rias knew well that it was all due to Kuroka.

After all, while Koneko's lineage was good, she wasn't that powerful, and her power was just so-so, especially when Rias thought about all the feline-type creatures that lived in this domain and saw previously. 

Was Kuroka so important to Masa that he would even dare to antagonize her, the little sister of Sirzech Lucifer?! 

"..." 

Somehow, Rias felt a bit jealous.

"YOU BITCH!" 

Kuroka was in intense anger since she knew well that she had run away, leaving her little sister. "IT WAS ALL YOUR FAULT TO BEGIN WITH! IF IT WASN'T BECAUSE OF ALL OF YOU, THEN WHY SHOULD I LEAVE SHIRONE AND BECOME A CRIMINAL, ALWAYS HIDING AND RUNNING?" 

"..."

"Nee-sama..." 

It was the first time that Koneko saw such an emotion from her older sister. 

"Calm down, Kuroka." 

Kuroka quickly calmed down, closed her eyes, feeling Masa's gentle embrace, and then looked at him apologetically. "Sorry, nyaa. You are a scumbag, too, but you are not bad." 

"...." Masa. 

Still, Kuroka wouldn't let go of Rias win just like that, and with a cool head, she looked at Rias with a snicker and said, "You pretend like a saint in front of us as if you have saved Shirone, but aren't you just taking advantage of her crisis? Or you might even create that crisis so she will be loyal and owe you. As expected of the little sister of Lucifer, your method is so scary, nyaa~!" 

"YOU BITCH!" 

Rias was completely enraged by Kuroka's words, who had slandered her. Unlike the other devils, she loved her servants and treated all of them well, so how could she even think of doing something like that?! 

Yet, Akeno and Koneko lowered their heads, thinking of the crisis they had faced before they became Rias' peerage members. 

Rias probably wasn't within this plan. No, she didn't know anything, especially with how young she was, but what about her older brother? 

Thinking of Sirzech's smiling face, who always showed a gentle expression in front of everyone, but the truth? 

Whether it was Akeno or Koneko, they had a shudder, thinking of how fearsome Rias' older brother was. 

"Calm down." 

Still, hearing Masa's words, Rias quickly calmed down since she knew well if she really went berserk in this place, then he wouldn't be merciful. "...do you want to do this, Masa? If you beg me for forgiveness, then I will forget about this and won't report this to my older brother, but if you continue with this humiliation, then don't think that you can escape from my older brother." 

While Rias didn't like to use her older brother's name, she knew well that she could only use Sirzech's name since she really didn't have an advantage in facing Masa on her own. 

The House of Gremory? 

While Rias was proud of her origin, she knew that her family was on the lower side, especially when she saw Masa's army in his region. 

However, her older brother was the strongest devil in the world! 

Even if she hated this fact, she also felt happy to have such a background, especially when she thought about how Masa would grovel below her and apologize. 

When she thought of his handsome face and his strong body succumbing under her, she felt a shiver of excitement, her face flushed in anticipation. 

"...." 

Masa was silent, feeling a strange malice and lust from Rias. He thought of rubbing his face, wondering what would happen if Masa of One Piece got the Mero Mero no Mi, but then again, Shiku Shiku no Mi was better as it was invisible, quiet, and no one would be able to tell that he was the cause. 

Still hearing Rias' threat, Masa only chuckled. 

"...why did you laugh? Do you think I am joking?" 

Meanwhile, Kuroka, Koneko, and Akeno knew that Rias was serious, but while Koneko and Akeno were surprised by Rias' changes and somehow, strangely enough, they were worried about Masa since they knew well that if Rias really called her older brother, then...

Looking at Masa's side profile, Kuroka was sitting on his lap, clinging to him with a smug smile. Still, even if trouble might come to them, she was calm; why? 

"Are you stupid?" 

"...ha?" 

"Isn't it clear that I am trying to cause you trouble?" Masa smiled as he leaned on his chair in a relaxed manner. Still, watching Rias' expression, he said, "I have changed my mind."

"...what?" Rias, who was still dumbfounded by Masa's words and in a state of disbelief, couldn't believe what she heard next. 

"Go back now. I will take Shirone with me." 

Ignoring Rias' expression, his conclusion was final, and it couldn't be changed no matter what. 

At the same time, he knew that it was time to take the position of the strongest devil in this world.