MTL - The Rebirth of the Financial Hegemon - ~ The harem needs support

Seven years ago, she freely and easily abandoned ￥100 and ran away, carrying her unborn son with her. Seven years later, she returned with the lady killer’s genius son, never expecting that her darling son would sell her out to MBS International. Unexpectedly, her immediate superior was the Mr. ￥100 from seven years ago!

Office worker Leon is reincarnated into a particularly punishing dating sim video game, where women reign supreme and only beautiful men have a seat at the table. But Leon has a secret weapon: he remembers everything from his past life, which includes a complete playthrough of the very game in which he is now trapped. Watch Leon spark a revolution to change this new world in order to fulfill his ultimate desire…of living a quiet, easy life in the countryside!

From the moment they set foot on the colony spacecraft, 10 million volunteers started a new journey.
This book is about farming in the early stage, and fighting for hegemony in the middle and later stages.
Guan Gong fights Qin Qiong, and Chitu wants to turn into a dragon. As an online game for hegemony, famous officials and generals in Chinese history are indispensable.
In addition, some non-human intelligent races left over from prehistory are active in this era that belongs only to human beings, adding luster to the new glory.
Everything starts from the island, let us follow the footsteps of the protagonist, keep moving forward, and create a new great

- Description from novelbuddy

A novel revolving around being transported to another world with an op system. The mc spends his day chasing skirts and doing missions to level up. A standard journey to the top with lots of girls from various animes and games with a twist of that gaming feel (hunting mobs, doing missions).

- Description from novelupdates