Rakuin no Monshou - Volume 5, Chapter 4: The Battle at the Coldrin Hills

An average man is reincarnated in the world of DxD! How do you survive in a world of battle-hungry monsters? With a cheat skill, of course! Devour the competition, becoming stronger with every fight! From the depths of the Familiar Forest, the Beast King will rise. (Harem, Gamer!SI)

18 years have passed since I was born as Allen, the eldest son of an earl in this world, while still retaining my memories of the present world. This world is peaceful and a stable society. The only extraordinary thing is that I was reincarnated into a world that is lenient on the existence of concubines. I selected a silver-haired maid as a sex slave and second wife candidate from among 10 candidates after a strict fellatio practical exam. I then lived an erotic life at home and at school as an attendant, but my reincarnated life is so fulfilling that I'm worried it will explode, as my busty childhood friend, a noble girl who was unsuccessful, ran for the third wife candidate, and my stepmother, who was my virgin partner, was sold off.

The journey of a generation’s male empress started because of four words.

“Send a dowry escort.”

During the 19th year of Yuanqing, Qi Yunruo boarded a carriage and entered through a corner door of the second prince’s estate. Then, across the watery corridor, he gazed at the prince from afar.

Notes:

For aristocratic women in imperial China to marry into a family part of the upper nobility, they must be of the legitimate line and must also have an escort/dowry maid that married into that family. That escort would be a “ying” (媵) and could be considered a concubine.

- Description from Novelupdates

Noah Black, a young man with an abusive father who had no opportunities in life, condemned to live a substandard life because of his father's mistakes.

Noah Black from the parallel universe, a marginalized, obese young man with social problems and a somewhat problematic but loving family, but who couldn't live long because of the mistakes he made.

When Noah 1's mind enters Noah 2's body with a Gamer System, the path to becoming the biggest superstar in this new world begins.

Is that body fat? I work out with the system and in a few days I have the perfect body!

Is my family poor? With my knowledge of my other world, I can make easy money!

Is this face ugly? With System I can look beautiful without plastic surgery!

Do I sing badly? In a few days, the System will transform my voice into the voice of an angel.

Do I act badly? In a few days, the System will make me an Oscar-worthy actor.

I can learn anything I want!

“Rising to the top was like a game, and now I have become the Final Boss of the entire world!” -Noah Black.