Global Reincarnation: Only I Know the Plot - Chapter 954:

The chief female forensic investigator, Ran Yan was secretly killed by her assistant. Unexpectedly, she was reborn in the years of the Tang dynasty. After experiencing a narrow escape, she fled from Jiangnan to Chang’an. Although, Chang’an was at the beginning of its flourishing period under the Li family’s Tang dynasty, various princes were vying for the throne by using all kinds of strategies. This was the dark days of the imperial court, where one needed to walk on a tightrope as one’s life was as powerless as an ant. The Xiao family controlled a large amount of wealth so inevitably they also became involved in the conflicts.

After arriving in Chang’an, she discovered many suspicious incidents: the original owner had unexplainable amnesia but his family was indifferent. She once again saw the orchid shaped clay inkstone, a valuable object that her mother has given her in modern times. Hence, could it be that she can time travel back? In order to survive in the Tang dynasty, she displayed her strong spirit and willpower by learning medicine from a doctor, pretended that she benefited from being sick on how to cure diseases, suffered hardship in earning money, manufactured penicillin, cured syphilis, and used her autopsy skill and experience to solve each and every murder mysteries.

- Description from Novelupdates

Liola—the best assassin in his world—has vowed to kill no more. He was being chased by an assassination organization when he accidentally dropped into a parallel universe: through a dimensional gate and into poor teenager Kaiser’s apartment. Instead of going to the government shelter for lost dimensional travelers, Liola and Kaiser wind up going to school together.

Liola has been trying his best to live the life of an ordinary person, but after certain things happen one after the other, he begins to realize that being an ordinary person could be harder than being an assassin.

“Kill Hamyuts Meseta”

A story about a world where all dead people become “Books” and are housed in a Library. The boy named Colio Tonies had his memories taken and a bomb transplanted in his chest. His life’s purpose is killing the world’s strongest Armed Librarian, Hamyuts Meseta. But, one day he gets his hands on the “Book” of a beautiful princess and falls in love at first sight. Furthermore, that love will cause Colio to get involved in a grand scale battle…

Wei Lan accidentally transformed into a cannon fodder girl of the era. She was dissatisfied when she went to the countryside for her brother and broke up with her family.

Because he was greedy for the male protagonist’s “beauty”, he was framed by another cannon fodder’s female partner, and successfully married a second-rate man in the brigade. In the end, he died in a foreign country. It can be said that he was a master of death!

Wei Lan, who is familiar with the plot, said who the male protagonist loves! Please let me be beautiful alone!

                                                                                                                                                                                                                                                        The female protagonist who wears books and is a squeamish woman VS the male protagonist who was ruthless in the early stage and didn’t talk much in the later stage.

(The heroine has a delicate setting, she doesn’t like to stray in, her daily purpose is: sweet, sweet, sweet!)

Note: There is another male protagonist, not the male protagonist in the original book.

- Description from novelbuddy