Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 17 - Chapter 17-15. At the Changing World

A relaxing story of a business tycoon who, sick of machinations and struggle, returned to the medieval world and married into a merchant family to become a “zhui xu,” a husband that lives in the wife’s home. Even though his intentions were not so, he could not avoid the matters of family, country and world.

“There was once a person that stood at the top of the golden pyramid,

with the innumerable cheap jealousy and envy of people,

he walked this road escorted by tens of thousands of people,

yet he could not escape the long and lonely sleep under the gravestone. ”

- Description from Novelupdates

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates

My name is Chen Huaian, and I’m dying of cancer.In my final days, I became obsessed with a game where you raise a virtual girlfriend.I spent all my savings buying her cultivation manuals and magical artifacts. Though my wallet was empty, I smiled like never before.I always thought it was just a game—until one day, my virtual girlfriend sent me a mystical pill.The next second, the pill materialized in my hand.I… might not have to die after all?——————————————————My name is Li Qingran. I was stripped of my cultivation, had my spiritual roots torn out, and was exiled from my sect, left to die in a broken-down hut.Just as I thought my life was over, I encountered a mysterious benefactor who never showed their face.This enigmatic figure healed my wounds, guided my cultivation, and helped me grow stronger until I became the most powerful sword cultivator in the Cangyun Realm.But the Cangyun Realm is on the brink of collapse. Spiritual energy is drying up, and the path to immortality is fading. Rumors spread that a mighty immortal from the Celestial Realm plans to merge our world with another on the verge of a spiritual resurgence.A great era of chaos is coming.And even immortals may fall.Desperate to find my benefactor, I scour the world for their traces.I will protect them—and become their eternal partner in the Dao!

Being adored by one's parents and hoping to achieve something that could bring them happiness, a child sacrificed their carefree personality and chose the path of books and knowledge at an early age.Without looking back to see how those they thought were their parents were, in truth, only pushing them from behind.Esme, a prodigy from an early age, excelled in everything, unlike her sister, who, though adored by both parents, always lagged behind.Finally, after saving the company from debts and restoring it to its former glory, Esme looked back at her parents in hope of recognition but...“You are not even my daughter, you pathetic fool.”“Hehe, Sister, how about I take your fiancé?”“Um, you see, Esme, I love your sister.”“Tch, insect, how dare you reject checks whenever I, your mother, asked for money!”Those words lingered in Esme's mind before she lost consciousness and woke up inside a prison.“What are you doing here, Aron?” Esme looked at a handsome young man seated in a wheelchair, gazing at her with amusement. He was her sole business competitor, and now, he was visiting her in prison.“Nothing, just came here for a proposal, Miss Esme...”Let's see what awaits the journey of an heiress who was wrongly accused of being fake, betrayed by her fiancé, and had to seek support from her business rivals.