The supporting character's harem is very normal - Chapter 25: I found that rat

"To be a star is to own the world and all the people in it."
...
Two years ago, Aiden came to the United States to experience the American Dream. But after sleepless nights of struggle, just when he was on the verge of giving up, a translucent screen flashed in front of him - it was a System!

A System that would make him embark on a journey to Hollywood. And today, he takes his first step by mesmerising the world through his singing!

So come and join him, for his journey, has just begun.

Singing? I'm the best at it.
Acting? I have Oscars lying around in my bathroom; you can practice your acceptance with it.
Movie Direction? They call me the king of the box office.
Novel Writing? Two words: Best Seller.

From creating the highest-selling music album to becoming the world's most famous superhero - Aiden will do everything to write his own legend.

--- All the songs and movie scripts in this book will be Original, and I'll be the one writing them. ---
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Vanity URL: discord.gg/dreamthree

The worst student of Westroad Academy. The disgrace of the Blake House. A new soul enters the body of Frey Blake, who couldn’t overcome his miserable life and chose death instead.

In novels with a stud there is always a Senior Martial Brother like this:

In the early stages of the novel, his innate talent is high, his cultivation is good, his appearance is handsome, and he has an intelligent, cute younger Martial Sister as a fiancée.

In the middle stages of the novel, he is caught unprepared and defeated by a young disciple (the protagonist) in the sect who’s hardly remarkable at all. From then on, he falls from his godly altar and loses his brilliance. Even his young Martial Sister leaves him for someone else.

In the late stages of the novel, he continues to turn dark, going down the Demonic Path and becoming the major villainous boss. However, the protagonist still ruthlessly defeats him and his soul is eternally sealed.

Once Qin Mo opened his eyes, he discovered that he had become this Senior Martial Brother.

- Description from Novelupdates

Crying blood and tears, she pledged a poisonous vow. The gods did not fail her. She was sent back to a decade ago. The legitimate daughter of Jiang family returned from hell.

Forget it, whatever! Since they already claimed that she was a temptress that wrecked the country, she shall overturn the world into complete chaos starting with her beguiling sister, her malicious stepmother, her cruel lover and her heartless family. Let her end the lives that Yama refused to end.

She was a pawn in her past life. In this life, however, the world was her chess board. With an alluring smile and a charming figure that enchanted the entire nation, the red-clothed woman wrecked chaos among the lands. She was a vengeful spirit from hell, determined to make those who wronged her pay in blood.

“I want those who owe me a life debt to hold their hearts out in front of me. I want those who looked down on me to only be able to admire me. I want Lord Zhong Zi to shiver when he sees me. I want to step on this splendid river and mountains!”

— — —

“You are a temptress and I am a thief.” His robe was as dark as the night and his gaze was as cold as the Northern Star. “A perfect match.”

Her red dress was akin to fire, but her heart was the coldest ice in the winter.

He was stoic in his black robe, yet he was willing to warm her frozen heart.

In this life, the elegant man seemed like a snowy bamboo grove with tall, chilly mountains, walking step by step towards her like an unstoppable force.

“Ruan Ruan, if you hate the world, then I shall conquer the lands with you.”

“What if I love the world?” She asked.

“I am the world, so you can only love me,” he answered.

- Description from Novelupdates