Naruto: Starting with Infinite Chakra - Chapter 210: Orochimaru’s Path Begins

Though it felt a little awkward to be my good brother’s aunt, it was really exciting to find out how handsome and rich his uncle was.

- Description from Novelupdates

In her previous life, she wrongly loved a scumbag, but was killed by him. Once reborn, she vowed to let him be forever.

On the day of the wedding, the director got married by mistake as soon as she got out of the sedan chair, but she didn’t want to leave the wolf’s den and enter the tiger’s den again.

“If you enter this king’s door, you will belong to this king.” He swore domineeringly, declaring his ownership of her.

“Concubine Ai, this king has no children yet, so the important task of inheriting the lineage can be left to you.” She bet on her innocence, he helped her to avenge her, and each got the good deal they needed, but in the end, it turned out to be a fake.

Do, make it real?

- Description from novelbuddy

With the Goddess’ blessing, he became a 『Divine Knight』 and founded an Empire.
As time passed, he grows older, and by the time the heavens called for him to come, the Goddess showed before him, asking for his last wish.

He wished to be reincarnated in the future.
He dedicated all his life for his people, he had no time to master his own arts.
This time, he wishes to live for himself, forging his body to the utmost limit.

The Goddess complied with his wish.
In the far future, the King shall reincarnate as the 『daughter』 of a renowned Knight family.
And, under some circumstances, she is labeled as a failure of a Knight, however——

「How convenient. I can stand on the foremost line without needing any rank. No better training than actual combat!」

Thus, the legend of the world’s strongest, most beautiful Knight Disciple (♀) has begun—

After rebirth, Long Xiaoyuan went into raptures because he was in poor health in his previous life. However, he suddenly found that his soul was in the body of a fatuous and self-indulgent emperor.