Two months had passed since the girls began their strenuous physical training that Dan designed for them. The training was harsh, much harder than they expected. Every morning, they would wake up at dawn, their bodies aching and their muscles burning from the previous day's training. Every morning, they had to repeat the same harsh routine: push-ups, squats, running, jumping, everything.
Some of them tried to give up at first; the pain was too much, and the exhaustion was unbearable. But when they remembered Dan and his expectations of them, determination ignited in their eyes again. They remembered his strength, how he trains without stopping and never complains. If he can do it, then they also must at least do their best. Competition among them also pushed them; each one wanted to be the best, to prove herself, and to earn Dan's admiration.
Today, while Dan was watching their training as usual, they were in the middle of a round of squats, gasping and sweating, but continuing. Suddenly, one of the girls stopped. It was Hina, a young girl with short black hair and brown eyes. She put her hand over her mouth, and her face turned pale. Then she began to vomit. She fell to her knees, her body trembling.
Dan moved quickly, faster than the girls were used to seeing him move. In a moment, he was beside Hina, holding her gently. He passed his hand over her back in calm circular motions, trying to soothe her. "Breathe slowly." Hina was gasping, with tears in her eyes from nausea. Dan spread his chakra into her body. Thanks to his superhuman chakra control, he could examine her entire body, feeling almost every organ in it. He passed through the stomach, liver, lungs, and heart. Everything seemed normal. Then he reached the womb and stopped. There was something—something small, growing, and alive.
After moments, Dan said in his calm voice, "From now on, your training will be postponed, like Rin. You are not in a position to do so." The eyes of the girls surrounding them lit up with excitement and anticipation. They immediately understood what he meant. Rin had stopped training a week ago after Dan confirmed she was pregnant. And now, with his confirmation, Hina is also pregnant.
Features of happiness and joy quickly appeared on Hina's face. Despite the nausea and exhaustion, she smiled a wide smile. "Really? I... I am pregnant?" Dan nodded his head. "Yes." Tears of joy began to flow from Hina's eyes. "Thank you, sir... thank you..." The other girls gathered around Hina, congratulating her and hugging her.
But in their eyes, there was something else: anticipation, desire, and a little jealousy. They also wanted to get pregnant and give birth to Dan's children. Women in this world, and in this era, were more traditional in their thinking. For them, to be absolutely linked to Dan and secure their status, they must bear his children. It was evidence of belonging and eternal connection. So, they all wished to be the next.
In fact, Dan was also anticipating the birth of his children—not with great excitement, but with curiosity. It would be the first time in his life he would have children. In his original world, he hadn't even thought about marriage or children; he lived alone and isolated. But here, things seemed different. Although he would love them, of course, Dan knows he won't love them more than himself. He was selfish by nature; himself, his survival, his strength, and his immortality—these are always the priority.
But it was also good to have a family—a family to serve him, serve his interests, and be an extension of his power and influence. He expects his children to inherit his Kekkei Genkai—the Sky Blue Limit that gave him superhuman chakra control and massive reserves. If they inherit it, they will be at a starting line much further ahead than any ordinary person. They will be strong from the beginning, and with proper training, they might become truly powerful. This would be useful to him.
After confirming that Hina was fine, Dan left the girls and headed toward his lab. He had built this lab a month ago. After building a large house for himself, larger than the girls' house, he decided to also build a special place for his research and technique development. The lab was simple but sufficient: a large room and a wide table piled with a large number of leather scrolls. Although he built a large house for himself, Dan maintained the rule of living separately and alone. He spends most of his time in his lab or training, visiting the girls only when needed or at night. He preferred isolation, quiet, and focusing on his goals.
Dan entered the lab and closed the door behind him. He sat at the table and spread his notes on the Vitality Seal before him. Now, he was trying to develop the next stage of the seal. With his increasing strength and improved chakra control thanks to his Kekkei Genkai, he became able to perform more complex modifications. The next stage he decided on was clear in his mind. He would spread the Vitality Seal throughout all his muscles.
Currently, the seal existed only in his bones, nourishing the bone marrow, which in turn produced blood saturated with chakra. But if he placed the seal also in the muscles, it would nourish them directly with chakra. It would make them stronger, more resilient, and faster in recovery. It would significantly increase his physical strength.
At the same time, he intended to do something else. He would seal any chakra leakage from his body absolutely. Normally, the human body constantly leaks a small amount of chakra through natural outlets. This leakage was normal, but it was also a waste. If he could block these outlets, except those he allows himself, he would retain all his chakra inside his body. It would increase his efficiency and his ability to retain energy. It would also make it very difficult for anyone to sense his chakra, giving him a great tactical advantage.
But this was very complex work. He had to apply precise seals to every muscle in his body and to every chakra outlet. Hundreds, even thousands of small seals, each one must be perfect. Any mistake might lead to serious problems, damage his body, or even kill him. But Dan was confident. His chakra control now was at an unprecedented level: cellular control, the ability to direct chakra to any cell he wants, and the ability to form complex seals with amazing precision. He can do it. He just needs time, preparation, and full focus.
Dan looked at his notes and at the diagrams he drew of the human body. He began to plan every step, every seal, and every small detail. This is a work project that will take time, but the result is worth the effort: the improved Vitality Seal, which will significantly increase his power and prolong his life further, and blocking the chakra outlets, which will make him more efficient and harder to detect.
Dan smiled a slight smile. "The next stage." He looked through the window at the hole where he trains and the house where his women are. His life was evolving and becoming more complex. He was no longer alone; he has women, and soon he will have children. But his goal hasn't changed: strength, immortality, survival. Everything else was secondary. "I will continue, no matter how long it takes." It was time for work—time to develop the next stage of the Vitality Seal.