The Great Merchant in the Cataclysm - Chapter 61

Killed by a Sage Emperor and reborn as his 13 year old self, Nie Li was given a second chance at life. A second chance to change everything and save his loved ones and his beloved city. He shall once again battle with the Sage Emperor to avenge his death and those of his beloved . With the vast knowledge of hundred years of life he accumulated in his previous life, wielding the strongest demon spirits, he shall reach the pinnacle of Martial Arts.

Yan Heng never thought that he would become a stray dog ​​with disabled legs. No one wanted to look at him, even the woman he loved avoided him. Jiang Wanying, who he used as a stand-in, appeared in front of him in a wheelchair.

She took him to see a doctor and brought him home. She was his salvation and the only warmth in his dark memory.

But her disability and face injury were all because of him.

——When she was pushed to the cliff, he chose another woman without hesitation.
Fortunately, she lost her memory at this moment, and everything can be salvaged.
Note: Yan Heng is not a male protagonist.

Content Labels: Rebirth Face Slap System Modern Overhead
Search keywords: Protagonist: Jiang Wanying ┃ Supporting role: “I am a salted fish after dressing as a wise woman [Quick Cross]” ┃ Others: Finish the text search column~
One-sentence introduction: a surrogate female supporting role, raising a dog to debut
Intention: self-improvement, great virtue

- Description from novelbuddy

When his wife left without a word when they were young, he entrusted their child to his mother and spiraled into despair, drowning his sorrows in alcohol.Sixteen years passed in a blur, and his daughter was diagnosed with depression.As she lay on the hospital bed, she struggled to smile.“Dad, I don't blame you, and I never blamed Mom. If I have another life, I still want to be your child, but please, don't leave me again.”With that, she closed her eyes and departed from this world.It felt like something tore apart in the depths of his heart.Gu Chen fell into a coma.Upon awakening again, his two-year-old daughter was calling him “Daddy” with a sweet smile and a childish voice.He was reborn!This time, he vowed to make up for his regrets towards his daughter, to hold his wife's hand and never let her go.This time, he was determined to change everything!

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