After Transmigrating into a Tragic Romance, She Goes Off the Rails Online

[Both leads are each other's only love + unhinged comedy + transmigrate into a book with a System + strong female and male leads + one-on-one romance + happy ending]

She is Shen Shuyu, a pharmacist at a modern medical university who specializes in developing all kinds of medicines. One day, she transmigrates into the role of Shen Shuyu, the heroine of an old-fashioned tragic romance.

Modern-day Shen Shuyu would rather be shocked by System 033 a hundred times than do its thankless tasks. In the end, System 033 has no choice but to let her take the plot in whatever direction she wants.

After transmigrating into the tragic heroine's role in ancient times, Shen Shuyu goes completely berserk, making sure everyone who ever hurt the original owner pays. On her very first day, she stabs the male lead three times, then serves the supposedly medicinal blood from his heart to the wicked second female lead and forces her to drink it.

Next, she wreaks havoc throughout the entire Prince of Qin's manor, attacking the male lead and the wicked female rival up top, and the vile servants below.

Shen Shuyu goes on a rampage, making everyone who hurt the original heroine suffer the ridiculous original plot's events in an even more brutal and painful way.

Her "madness" catches the attention of Zhao Shiyan, the regent of the dynasty. He gradually falls in love with her. After successfully completing the original plot through her brand of "madness," Shen Shuyu returns to the modern world, and Zhao Shiyan follows her there.