The supporting character's harem is very normal - Chapter 436 So you are the dog they abandoned?

I, the mighty Telepath Starlord, got banished into the mortal world. The days in the mortal world are much better than those in heaven! Everything is here — money, authority and most importantly stunning beauties! I am from a rich family. Yes, I am indeed wealthy now. The kind of wealth where you would not want to displease me. Domineering CEOs, military big shots, business geniuses, you name it — I know them all! I know everything you are thinking about. You can’t defeat me anyway, how are you going to go against me? A century in the mortal world is only equivalent to a hundred days in heaven.
As an urban banished immortal, I will enjoy the heck out of my time in the human world and a huge commotion would arise in heaven!

- Description from Novelupdates

Shi Jin was a desperate woman and just a pretty face in her past life. She was swapped at birth and brought up in a rich family, only to eventually die a horrible death.

I had a supporting role in a modern fantasy.

The loyal dog of a villain with an angel’s name, Cheon Sa-yeon, and an unfortunate supporting character who died on his behalf, Han Yi-gyeol.

In order to escape from Cheon Sa-yeon and survive, he must use the protagonist, Ha Tae-heon.

But Ha Tae-heon, who he thought of as a lifeline, was infinitely indifferent to him. Rather, Cheon Sa-yeon showed interest.

But besides that, something strange happened.

The events that occurred in the original story had advanced, and the gate and monster levels had risen. Even the people were “different” from the original.

The original version I was trying to use was wrong.

Wu Chi is thrust into a parallel realm where myth and reality collide, and the heavens themselves are in turmoil. Armed with a mysterious, world-altering treasure, Wu Chi possesses the ability to reshape his domain like no one before him. Imagine turning a simple farm into a Spirit Field that skyrockets crop yields by 1000%, or upgrading a mere well into the Moon Well, a magical source of instant healing and energy.His journey doesn’t stop at farming—his Archery Towers become Elemental Towers, capable of annihilating foes with devastating magic, while his Barracks evolve into a Cultivation Academy, breeding legions of immortal swordmasters ready to conquer all.With wealth, power, beauty, and endless possibilities within his reach, Wu Chi has one goal: to claim it all. But in a world teeming with gods, demons, and fierce competitors, will he rise above the chaos or fall victim to it?Get ready for a tale where every decision could lead to unimaginable glory—or destruction. All People Lord is not just a story—it’s an odyssey of ambition, strength, and the relentless quest for immortality. Brace yourself for a ride that will keep you on the edge of your seat!