Sin landed on the main deck with the girl in his arms, and he instantly caught everyone's attention.
Kuina, who was practising her sword form, curiously looked their way, and Nami and Vivi, who were playing around, immediately rushed over to them.
Sin started introducing them to Ain, and when everyone else gathered as well, the former Marine curiously looked at the Blackstar Crew.
"So, who is she?" Bonney raised her brow at her Captain.
He had told them the girl's name, but nothing else.
"Oh, she is part of our crew now and also your new Rokushiki Instructor."
As soon as he said those words, they all widened their eyes in surprise, and he laughed when the Pinkhead quickly grabbed Ain's hands and led her away.
"Teach me!"
Her excitement caught the dark blue-haired girl by surprise, and when the others surrounded her as well, she felt a little overwhelmed.
"It's not easy to learn Rokushiki... you need to train your body first to gain a certain level of strength, flexibility, and agility..."
"Try me!" Bonney was super confident, and it was the same for Kuina and a few others, especially Bart, who was hell-bent on growing stronger.
Seeing Ain, despite her tiredness, start explaining and demonstrating things to them, Sin smiled.
Even Robin was extremely interested in learning the Six Styles, and Sin was grateful that they had the Triplets onboard and preparing the dinner.
Otherwise, he would have to cook himself or sleep on an empty stomach.
He was just about to walk away when he stopped and saw Bonney kicking up the air and flying.
His heart skipped a beat in surprise, and Ain was looking at the Pinkhead as if she was staring at a monster.
The rest of the crew felt a weight pressing on their hearts at seeing her succeed so easily, and Sin decided to stay back and watch them all train, not taking part in this training.
Geppo was the only thing Ain was teaching them tonight, and it was because the explanations behind it were the simplest.
All one needed to do was to learn to send the entire force of their body into their feet and imagine expelling it whilst stomping the air.
Ain also told them that they could use Armament Haki to help them learn it, but made it clear that it was better to learn it without using Haki. It was a lot more beneficial to the body's growth to not use Haki in this training, and by improving their bodies through Rokushiki, they could drastically improve their Armament Haki as well.
Robin quickly got the hang of it, especially since she excelled in hand-to-hand combat and kicks. Her legs were already very strong and flexible, and once she understood exactly what she needed to do, she kept improving and improving before she was effortlessly climbing up into the sky with Bonney.
His sister was super excited to finally be able to fly of some sort, and the Pinkhead was super excited that she could now fly without using her Devil Fruit Powers, which were a little taxing on her.
An hour later, Augur managed to learn it. He was very familiar with the flow of energy around the body thanks to his Devil Fruit, and Sin grinned when he saw his Sniper jump off the Ship and land on the sea before starting to run on it.
By the time Rubis, Shaphir, and Emeraude came to inform them that the dinner was ready, Yamato and Nami were climbing up the sky as well, and Ain was feeling dizzy now.
She was in disbelief at how talented everyone was, and seeing a little girl manage to learn Moonwalk so easily, which had taken her several weeks after going through gruelling training to improve her physique, she felt depressed.
What she did not know, however, was that Nami possessed a very strong physique all thanks to her Devil Fruit, and it was the same for Yamato, who also had her lineage working in her favour.
"Alright. That's enough for tonight. Go, freshen up and have your dinner." Sin ordered them all, and even though they were reluctant to stop, they obeyed his command.
"I am the best!" Nami jumped into his arms and proudly said, and he grinned at her narcissism which amused him a lot.
"You are." He fuelled it, and she grinned back at him.
After they had their meal, Sin did not care what they wanted to do, and just excused himself and went to sleep.
Robin did not let the others bother Ain and showed the girl her new room, and gave her the necessities that she might need. It was now Bonney who was instructing Bart, Kuina, Nojiko, Pascia, Bepo, and Gad.
Vivi had given up as she knew her body was just not ready for it, and she happily went to bed with Nami.
However, no one else could sleep that night.
Sin woke up late in the afternoon, and when he came out on the deck, he found that they were already in Winterheim.
Weirdly, there was no one else on the ship. Not a single person, and when he scanned the surroundings with his Observation Haki, he found his crew on a Drum Rocky, training.
Even Law and Hancock were there with them, and so were Shachi, Penguin, Lily, and Vigaro.
Only Nami and Vivi were inside Wolf's Laboratory, playing around with Hit and Salome, and Desire Redfield was with the two of them.
Dalton was busy training a young kid, and he teleported right to their side.
Seeing him suddenly appear, both of them stopped and knelt, and he smiled.
"Rise." He lightly said, and curiously looked at the young man, who was wielding a cutlass.
He was tall, muscular, and around the age of fifteen, and he also bore some resemblance to Dalton.
"He is not your son, is he, Dalton?" He playfully asked.
"Nephew, Your Highness. He recently found a Devil Fruit, and the Queen allowed him to consume it and asked me to train him. He has joined the Royal Guard."
"Oh. Which Devil Fruit?"
"Kuma Kuma no Mi, Model: Polar Bear," the boy answered and smiled when he saw his King nod his head.
"That's a very good Zoan Fruit. I hope you will not waste its potential."
"I won't, Your Highness!" He promised, and Sin smiled before he teleported away to the Castle's clock tower, where Kureha was sitting, drinking her whisky.
"How have you been?" He asked, and the old woman grinned.
"Young company makes you even younger."
"Is that so?" He chuckled.
"Your crew has grown by a lot."
"You call twenty-two members a lot?"
"You didn't count that monkey and snake?"
Sin laughed at her words and shook his head.
"Now I will. Twenty-five, counting me."
"It's not the numbers." She shook her head and then smirked. "They are all very talented," The Witch Doctor said as she stared into the distance, where his Crew was learning Rokushiki. "You plan on giving them all Devil Fruits? Who's going to save you when you sink?"
Her cryptic words made him laugh.
"No, not all of them. Kuina had already made it clear that she would never eat a Devil Fruit. She just wants to become the strongest Swordsman in the world, not relying on any Devil Fruit power."
"Ambitious."
"She is." He grinned. "Hachi, Gad, Rubis, Shaphir, Emeraude, and Bepo will not be eating Devil Fruits either. Two of them are Fishmen, three are Half Fish-maids, and Bepo is... Bepo."
Kureha chuckled at his words.
"The new girl?"
"She desires power."
"Why?"
"To live and to not lose someone again."
"And that Big Man?"
"He desires to grow powerful just for the sake of growing powerful. He does not want to lag behind everyone else, and he also wants to defeat me one day."
"Interesting. And the twins?"
"They want fun powers." He shrugged and smiled as she chuckled.
"So, you are only missing Shipwrights now."
"Yes, and I have two in my mind. They are currently learning from the best of Water 7."
"Just two?"
"Aye, but I am open to having you on my crew."
"I am no Shipwright."
"No, you are a doctor." He smiled.
"I have no interest in dying so young."
Sin laughed at her words and then just shrugged.
"Your choice. The spot is always open for you if you want it."
"I'll pass." She chugged down a few more gulps of her whisky.
"How are his studies going?"
"He's very intelligent. It helps."
"Heh... never thought you would praise him so openly."
"He's still a brat, just like you are."
"My, my, have your years not taught you any manners..."
Sin narrowly dodged and grabbed the bottle of whisky she threw at him, and then politely returned it to her.
"What's going to happen to this country once you decide to make your move?" She asked, and he raised his head and stared at the snowing clouds.
"I will keep it safe from them."
"And who will rule it?"
"I will not leave it without a ruler, and it will be someone from my family."
"Remeber your promises."
"Always."