The supporting character's harem is very normal - Chapter 19: I am Charlotte

Raised as nothing more than a weapon, Xin Long was kidnapped and forged into a killer — his freedom severed, his name reduced to a whisper. In a world where trust is a death wish and mercy is a myth, he treads a path of blood and betrayal, outwitting ruthless foes and surviving inhuman trials. Yet, the deeper he delves into the shadows of Jianghu, the more he unravels a web of dark secrets that bind the martial world.Step into the dark side of Jianghu and witness the so-called Forgotten Tale — a story never meant to be told...

Yuki, a high school junior, dies heroically saving a stranger and is reincarnated in a fantasy world, where he discovers an extraordinary and unrivaled power.

The latest offering from the pen of the creator of “My Military Branches Can Evolve Infinitely”, Bimo Zhijian.---------------------------------------------The world has experienced a radical transformation. Source Qi has awakened and the apocalypse has descended.This is a catastrophe and also the beginning of a new epoch.Tang Yu somehow obtained a domain system, and while summoning warriors, producing equipment, developing his domain, drafting rules...as he looked back, he discovered that he was already standing at the apex of the era.

The extraordinaire has disrupted the silence of the world and ever since then, technology has taken a different path.

When humans find a path for evolution in the dark, I’ll remove my ribs, burn my heart and burn the midnight oil to become their pioneer.

This is the process of a gamer manipulating the world.

Mini world of endless fun awaits.

- Description from Novelupdates