The World That Tao Rules - Chapter 29: The Thorn in His Heart

A Russian economics expert had been making money through long-short strategies during the Russia-Ukraine war. Despite his economic success, he felt deep regret about Russia's historical mistakes. He wrote on his blog that “Russia has been on the wrong path since the 19th century,” critically analyzing Russia's history. Then, remarkably, he traveled back in time to 1891 and found himself in the body of Russian Crown Prince Nicholas II during his visit to Japan.

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.

Wei Qiqi is the only successor of Wei Corps inheriting a hefty fortune. However, her stepmother bribed a witch from Thailand, harming her with two ancient witchcraft curses.

The first: is to send her off to an era of chaotic war with no way of returning

The second: is to have a disfigured look. In order to restore her appearance she must give her first night to the man that truly loves her.

Wei Qiqi thought of countless ways to return to the modern world but due to the turn of events, she became a renowned general throughout Great Han meeting the handsome and almighty third prince. With his majesty’s imperial joke, Wei Qiqi the ugly maiden was bestowed a marriage to third prince causing him to become a laughing stock by the whole world.

- Description from Novelupdates

Upon opening his eyes, Muyang realized that he found himself in Dragon Ball’s world filled with dangerous people like Vegeta, Frieza, Cell, Majin Buu.