World's End: My Keyword is One More Than Others - Chapter 1: Maintenance and betrayal

Gu Changge, a noble lady from a wealthy family, is a well-known business legend in Yuncheng, going into business at 15, taking over as President of Gu Group at 18 and becoming Chairman of the family business at 30.
She is murdered by her husband Shao Tianze, just to give his mistress Gu Changle a healthy heart. But a premeditated car accident makes Gu Changge revive in a new guise and settle into an 18-year-old girl, Song Yunxuan.
The new face, young body and experienced soul become her weapons of revenge. In her struggle with the four big families in Yuncheng, can Gu Changge shrink back? Will she open her broken heart again? Can she always head off dangers in power struggles?
Let’s find out if Gu Changge can revenge herself and create glory again.

- Description from Novelupdates

Transported to a rural family in 1973, where eating required food stamps, dressing needed cloth tickets, stepping out asked for a letter of introduction, doing business was considered speculative profiteering, and securing a job demanded an urban household registration. She, a young girl from the countryside, faced an indifferent mother, a troublesome younger brother, and an elder sister who often had poor ideas. Life had become insufferable.Memories from her past life are mostly forgotten, yet the myriad of objects in her magical storage ring baffles her greatly.

What the hell? That menace who bullied me since I was six years old, actually became a pretty girl after three years of living apart? And she even ran to our agreed duel location to confess to me, hoping that I can become her boyfriend?!

【 Warning: Mature Content R-18 】Graves lived a content life, until he lost it all. After inheriting a hotel and immortality. As his final act, he sacrifices himself to save a woman's life.To his surprise, he reawakens to find the woman thanking him in an unorthodox way.His once normal life changes with this new power, and by comical chance, he throws himself into deadly situations to save women from bullets, blades, fire, planes, tanks, and trains.His new life is one of pain, except he always ends up on top.Join Graves on his comical struggle through the unnatural disasters he faces for the sake of his love life.