Naruto System in One Piece - Chapter 149

With a marriage contract forcefully done, he married her, and all she could do was comply, and resent him deeply for that and for all the following misunderstandings they faced.
However, it was already too late when she understood she actually loved him.

The ordinary 18-year-old Edo, during a nighttime walk, finds himself in a fantasy world where he gains a mysterious power that could shape his destiny.

Arranged marriage? Or a child first and then love?After being defeated and captured, the dragon slayer Leon became the prisoner of the Silver Dragon Queen. Facing certain death, Leon made a desperate move.In a twist of fate, he impregnated the queen right before he was supposed to die.He thought that by doing this, he could condemn the queen to live with the shame for the rest of her life, fulfilling his mission as a dragon slayer.But two years later, when Leon opened his eyes, he found a little dragon girl with a tail beside him.“Daddy! You finally woke up!”Not only was Leon alive, but he had also become the father of this little dragon girl.After that, the Silver Dragon Queen started her relentless revenge. In a way that was truly “tit for tat,” she subjected Leon to non-stop bed exercises. But as a mere human, how could he possibly withstand the unending onslaught of a dragon's... desires?Leon decided to escape.However, every attempt ended in failure.Finally, under the queen’s threats and bribes, he resigned himself to being a stay-at-home dad.“Hm, you’ve been behaving well. I’ll reward you by having a second child with me,” the queen declared.Leon swore, “I’d rather die! I’ll leap from the Silver Dragon Palace, and I still won’t have a second child with you!”

Zheng Nianru went from being a Commandery Princess who could be killed at any moment to the position of the Empress Dowager, wielding power over the world. What she couldn't accept was that she didn't end up with a good fate. However, Zheng Nianru thought that no one would have been able to save Nanzheng State.Yet, she was reborn and, having deeply reflected upon her pain, also considered several past mistakes. Firstly, she should not have married down into the family of Ju Nanyi, a man with a narrow mind who came from a minor house, who only thought about romantic affairs and entangled with her in desperate affection, incapable of assisting Nanzheng. Secondly, she should not have killed everyone in Qiandao Temple, which was the spiritual pillar of the people of Nanzheng State. After all, there were better ways, weren't there, like seduction? Thirdly, she should not have been so confident that the monarch of the neighboring country would fall at her feet, nor should she have trusted the promise of that fickle neighboring monarch, which led to years of drawn-out conflict between the two states.Um, Zheng Nianru felt she was not wrong. She just wanted to live well and to be a good Empress Dowager. Since she had the chance to live again, why did she have this chance? Could it be that she was expected to once again turn Nanzheng State upside down?