Re-Birth Of A Genius. Creator/Destroyer - Chapter 2141 Dean and Christos

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

King of Harem, Pioneer of All, R-18 Story

My name is Mike Tyson. I was a normal dude that had an abnormal death. I was lucky enough to get reincarnated in another world.

This is earth, but alternate earth or real? I don't know. But I know that I was born with the fate of a protagonist. Unsuccessful in awakening my innate talent, I spend two years in my middle-school.

But this year, everything changed. I awakened something, and not just an innate ability but also a unique ability. That was the true start of my life.

A life that I feared became reality. My fate was in my hand, but the fate of my little dragon was in the hands of the system. Spreading the legs of women in bed, I found a new way to gain strength.

Heavenly Maidens, Supreme Fairies, shave that cave of yours. My little dragon will fly from one cave to another until it meets the destined cave.

Embracing the power given to me, I let the beast inside of my soul go wild. I was no longer restricted by anyone or anything.

The title does not represent me, I represent the title. Spreading the legs of hundred women, I will ascend to that title and become the one and only 'God of Sex'.

Standing in front of a creature with a dark face and red scales, I broadened my chest and asked “I have talent, looks, money, women, power, and little brother. What gives you the confidence to challenge me?”

Every little detail including name, identity, is fictional. They might be relatable but please don't relate them.

Special Tags- weak to strong, fast strength growth, adult, mature, Character Growth

(Read this book if you want to increase the size of your little brother)

In regards to the MMORPG Cross Reverie, Sakamoto Takuma boasted an overwhelming strength that was enough for him to be called the Demon King by the other players. One day, he gets summoned to another world with his appearance in the game. There, there are two people that insist “I am the real summon master.” Takuma gets slave-turning magic used for summoned beasts cast on him by the girls –

Yu Shanshan, who has been tyrannical and lawless for 20 years, suffered retribution at the age of 21. She changed from a little ballet princess of 45 kg to a poor and fat one of 90 kg.. Apparently, eating was the most important thing in her life. Her success in losing weight was far away.

However, one day, the father of her child who had disappeared for four years came back. From then on, Yu Shanshan was forced to embark on a diet that was worse than death.

- Description from Novelupdates