Bog Standard Isekai - Chapter 25Book 1.

Ash opened his eyes to find that he had traveled to a strange nation of many races, and people were kneeling before him.Before he had time to adapt to the new identity of the Terminus Observer, he was put to jail – as a cult leader.In prison, controlled by a high-tech chip, he was unable to use violence. He also lost all his memories due to the time warp.How could he escape from the prison full of ogres, green-skinned beasts, sorcerers, and elves in this strange nation? And how could he survive the legendary Blood Moon Judgment?“Ding! You obtained a game system – Mage Manual! It includes an illusory world map, which can predict risks and gains, helping you find advantages and trouble, and greatly improve exploration efficiency!”“Ding! You obtained Deadly Berserker Sword Maiden! You can share all skills and upgrade together with her!”“Ding! You encountered an Illusory Vortex! Go straight through the heartland of the Illusory Realm and harvest a lot of experience to create the Silver Wing!”...Is this the legendary system? It not only gives me free skills, but also a skillful fighter?Ash discovered that even though he was in the Otherworld, he could dominate his own destiny with the system, and even...dominate the entire Otherworld!

Protect humanity from anomalies.

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

The most famous deed of this princess was her words to her younger brother Liu Ziye.

When he became emperor, she told him, “Although your highness and I are of different sexes, we are the children of the same father. Why can you sleep with so many different women, while I must be only with my husband? This is so unfair!”

And after the Emperor Liu Ziye heard his elder sister’s words, he ridiculously thought it made sense. So he immediately corrected his “wrong ways” and painstakingly selected thirty handsome youths for her to enjoy.

Chu Yu awoke in the princess’s body and realized that she had obtained a male harem of three thousand; should she take just one to drink, or keep all of them?

- Description from Novelupdates