Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 1 - 1-3. The Start of Wandering Life!

Dale Mitchell, your average guy in a below-average job. But, what happens to him is anything but average. After hitting someone in his truck, his world was turned upside down, inside out, and more than fifty shades of grey.

Now, he seems to be something called a World Keeper, and must create and manage his own world. Is this his afterlife, or something else entirely?

The protagonist, Winnie (文尼), confesses his love to his childhood friend—the princess he’s been secretly in love with for years—but is brutally rejected in public. His heart shatters, he’s humiliated and ridiculed, and he collapses unconscious. When he wakes up, he vaguely remembers his past life’s memories and realizes he has transmigrated into the world of an otome game he played before. At first, he’s thrilled, thinking, “Nice! I must have been reincarnated as a villainous side character who disrupts the protagonist’s romance, right?” But then… surprise! He’s not just the villain—he’s the “Saintess”!

He rose from hardship, but was felled by betrayal. From then on, one man, one gun; treads the path between Evernight and Daybreak to became a legend. No matter what was destined to be his fate, he intends to become the ruler who dictates.

In the 21st century, divine physician Qian Jiujiu was targeted by a bomb when she was rescuing soldiers in the battlefield. Because of the bomb, she crossed the to a new state and became the second daughter of concubine in Qian familiy. Because the taoists asserted that she would “curse parents”. Therefore, she was sent to village outside capital for 16 years not long after rebirth. This time, her father took her home, just to let her marry Mu Yexiao instead of her lineal sister.

Who is Mu Yexiao? The sixth prince of the state, the favorite prince of the emperor. Because he was injured in the battlefield, his legs were disabled, and he was unable to bear children. In anciet time, he also failed to seek effetive medical treatment. The royal family decided to marry the legitimate daughter of Qian families to Mu Yexiao, in order to drive away bad luck.

However, as a modern doctor who combines traditional Chinese and Western medicine, Qian Jiujiu won’t obedient to fate? She used her wonderful medical skills to heal the Mu Yexiao’s disabled legs, hoping this prince could support her. But who knows he was very shrewd! Who yielded to whom? It’s difficult to say.

- Description from Novelupdates