Find a time-travel novel

I only remember that the protagonist and his wife seemed to be assassins and secret agents. When they transmigrated, they traveled with a truck of AK-47s to the era of Cixi. He became the emperor and accidentally crushed the emperor to death. However, the protagonist and his wife can still double cultivate. The real emperor is very weak, but after he became the emperor, he completely changed. This book ended a few years ago
The main character traveled to the Qing Dynasty to become an emperor, but not (traveled to the Qing Dynasty to become an emperor). The question that I wrote has been read clearly by the friends who have come in. Thank you. Also, I added a few more points. It seems that there is more than one note: Everyone, listen carefully. After the protagonist transmigrated, he is still at the same age. It is just that his identity is different. It is not the same as the book (Transmigrated to the Qing Dynasty and became an emperor). completely different

Answer 1

She traveled to ancient times and became the emperor's sister. She stood out from the Emperor's favor and the competition between her brothers and sisters to become the Empress. However, she found out that her husband had an unspeakable secret with another woman. In order to uncover the truth, she embarked on a journey full of danger and challenges. She would meet all kinds of characters, including loyal ministers, witty assassins, evil villains, and cute ordinary people. Could she expose the emperor's secret and protect her status and dignity?