MTL - My Choices Became Real - ~ Explain 1.

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

A mysterious natural phenomenon caused the Earth to be plunged into darkness. The world turned into an endless bloody chaos and mankind is on the brink of extinction…

I somehow managed to be reincarnated as a maid who monopolized the Emperor’s affection. In the end, she was killed by the Evil Empress through vicious means.‘Fortunately, I’m only five years old.’‘I still have a long way to go before the original work begins, so shouldn’t I just avoid the Emperor and Empress until then?’I thought so, but…“Lize, what did you say to the Emperor?”“I said that I support you.”The evil Empress who was supposed to kill me in the original story won’t leave me alone.“Truthfully, you like me much more than the Emperor, don’t you? Am I right?”Is the Empress trying to win me over?

After being transported to this world, Nara Kazuki discovered that as long as he grinded enough proficiency, his jutsu could level up.And so, he began walking a very... peculiar ninja path.