Fairy Tail: Vector Manipulation

Then she turned to Granny Zha and asked, "Granny Zha, how do you get pregnant?"

Granny Zha covered her eyes speechlessly. How had he educated these children into being like this? What a complete failure. Startled, she hurriedly rapped her with her cane and shouted, "What are you doing?"

"Ow!" The girl scratched her head, stuck out her tongue, and said with a giggle, "I was just looking for a way to get pregnant!"

"That's not how pregnancy works. First..." Granny Zha began educating the girls about physiology. They would occasionally cover their mouths and gasp, their faces flushed as they looked at Chen Fan. So they had to do this and that... Men were terrifying. Chen Fan was a ready-made example. If Chen Fan had known, he definitely would not have cried; he would have been overjoyed. With his utterly shameless nature, who knew what bastardly thing he might do next;

While Chen Fan was being treated as research material, Ace had also tracked his way here. Not all the pirates had entered the Calm Belt earlier; quite a few had stayed out. Seeing the miserable state of those who had entered, they ran for their lives. The Calm Belt truly was a forbidden zone for humanity. It looked like those women were as good as dead, and the five hundred million beli bounty and the Devil Fruit were seemingly gone. Those women were really ruthless;

Ace used his fists to communicate with those pirates and obtained some information. Upon learning that Chen Fan had been seriously injured and had entered the Calm Belt, he reported the news to Whitebeard;

Whitebeard also told Red-Haired about the news, and Red-Haired informed Hawk Eyes. In short, through the surviving pirates and all sorts of chaotic information channels, almost the entire world