Death March kara Hajimaru Isekai Kyusoukyoku (WN) - 18-32. Boy in the Labyrinth City (6)

A failed investor from 2017 got drunk and woke up in the 1980s. China is just opening up, and the economy is blooming. There is also the dissolution of the Soviet Union, the bursting of the Dot-com bubble and other financial crisis. He used his knowledge of the future and slowly build up his empire.

- Description from novelupdates

Painfully shy and conflict-averse, Yun Ruoyan is a scion to a noble house only in name, a puppet embroiled in political machinations beyond her ken. At the tender age of eighteen, poisoned and at death’s door, she finds herself thrown out into the streets. Her relatives have all been executed, betrayed by her dear husband and her cousin. With her dying breath, she curses her own weakness and swears revenge.

When Yun Ruoyan awakens once more, she is thirteen, transported five years into the past by the will of the heavens. Her death-defying experience has changed her: no longer is she the malleable creature she once was. But more questions await at every corner—what is the truth behind the birthmark that disfigures her appearance? What are the circumstances surrounding her mother’s mysterious death?

Will the phoenix rise from the ashes, or will she fall once more in thrall to fate?

The strongest female assassin from a special assassination force met her death one day on a mission. To her surprise, she woke up in the body of a 13 year old girl, Mu Rong Liu Yue. Through Liu Yue’s past memories, she found out that she was bullied due to the huge birthmark on her face, even though she came from a renowned family. Liu Yue was beaten to death by her own cousin, and that’s how she managed to enter Liu Yue’s battered body. The assassin then decided to live her life as Liu Yue and swore to avenge her death.

Chu Li was a particle physicist until a freak accident took his life and transmigrated him to a parallel universe – one where he wakes up with inexplicable abilities and finds himself in the running for a job in the imperial palace.

This is a story of heroic adventures, cunning strategies and romantic tales. How will our MC thrive in a world completely strange to him? Where will his ambitions and abilities take him in the palace?

- Description from Novelupdates