Path of Medicine With a System - Chapter 300: The doctors permanent assignments

He—an enigmatic and cold-blooded soldier with a mysterious background.
She—a ruthless and bloodthirsty spy.

Luo Zheng is at the bottom of the Luo Clan hierarchy, despite his family being the founders of a power refining technique that could instantly defeat any opponent.

One night, enraged by unfair treatment from a family steward, Luo Zheng burns the family records. In doing so, the hidden magic in the book engulfs him and Luo Zheng becomes a new skilled fighter. Fleeing his home and despicable clan, Luo Zheng must learn to harness his powers to rescue his younger sister while his own cousins are on his pursuit.

- Description from Novelupdates

The strongest Hero in history, Nakamoto Keisuke.

He was summoned to another world in the spring at the age of fifteen years old, and when he successfully defeated The Demon King, he was already thirty-two years old. He had finished his role in another world and returned to Japan, but the reality that had been waiting for him was, “Middle school graduate with seventeen years of blank period” label. He couldn’t find a decent job and had no choice but to spend his days working part-time.

Before such a Nakamoto, a beautiful girl who self-proclaimed had come to return the favor, appeared. “I’m the reward for Hero who had defeated Demon King”, said Angelica, a girl who came from another world that persistently tempted Nakamoto to make her his wife. Together with a high school girl who looks like Elsa, his beloved girl that he lost in another world, Nakamoto with his cheats skills got caught in a harem life.

[Rebirth + Era + Space + Getting Rich + Counterattack Face-Slapping]Waking up, Su Yuanyuan found herself in a time of famine. Looking at the bird-poor environment, she felt like she could die again to escape back.But why does this thought give her a splitting headache?Want to hang herself, but the safety rope brought from her space would break on its own?Thinking of jumping into the river, and she gets pulled out just after jumping in?Alright, better to live stubbornly than to die well. She has a space, can farm, and doesn't fret over food or clothing. Heaven, the 'father', offers conveniences, making life pleasantly good!However, that handsome guy who always forces her to work, I'm only ten years old, is it really okay for you to look at me with such deep affection?