Academy's Silver Gatekeeper - Chapter 87

Cado is transported to the Dragon Ball world and unexpectedly awakens the God-Level Choice System.Ding![Saiyan “Raditz” has invaded Earth. Host, please make a choice!][Option 1: Ignore it.Reward: Namekian Bloodline (Grants limb regeneration!)][Option 2: Face Raditz head-on and defeat him.Reward: Legendary Super Saiyan Bloodline (Top-tier talent, completely overpowered!)]Without hesitation, Cado picks the second option.Frieza: “How did the mighty emperor of the universe end up as his servant?”Cell: “Damn it! Why did no one warn me that such a monster existed in this timeline?”Beerus: “If he wanted to be a God of Destruction, my position would've been his already.”Grand Priest: “I acknowledge Cado as the strongest!”With unparalleled power, limitless potential, and the ability to reshape the Dragon Ball universe, Cado's journey begins!(Harem only includes 2 women)

In the novels, all kinds supporting male leads are not only handsome but also talented. However, the existence of the female lead’s halo makes them lose their lives and properties!

In order to change this situation, male supporting role rescue plan officially starts.Gu Jinmi was inadvertently selected by the system. However, for her own happy future, she will work hard.

(There’s another novel with the same name but different author. The story is different too.)

- Description from Novelupdates

She was the illegitimate daughter of a wealthy family—abandoned by her father, oppressed by his legal wife, and humiliated by the so-called sister. She watched her mother perish in a raging fire and was thrown into the flames herself.Her name was Janice. And she died in that fire.Ten years later, under a new identity and the name “Janet,” she survives in silence. Forced by her stepmother to marry a wealthy heir rumored to be “paralyzed and disabled,” she becomes entangled in a vicious struggle of family betrayal and ruthless power games.With cold eyes, she watches the hypocrites who once trampled her into the mud—one by one, they will become prey on her road to revenge.Her wheelchair-bound “husband” Philip, the feuding brothers Charles and August… But what she didn't expect was that the boy who once quietly handed her a handkerchief all those years ago would become the most unpredictable piece in her game of fate.She has returned—not for hatred, but to personally end the past that was once crushed beneath their feet.

Shi Jin once read a book. It was supposed to be about satisfying the desire for vengeance.

The main character, also named Shi Jin, was the sixth son of his harem-novel-protagonist-like father. All was well—while his father was alive. But after his death, Shi Jin’s five elder half-brothers tormented him, eventually leading to his death. The protagonist was reborn, determined to take revenge, and… the novel was discontinued.

That day, Shi Jin almost spat blood and dropped the book into a shredder. The next day, he died in a car accident. Somehow, when he came to, he had transmigrated into a teenager, a youth also called Shi Jin.

There was only one problem. His father had just died. His older brothers were about to torment him…

Shi Jin: Let’s eliminate my brothers’ hatred, my goal is to keep my life!

- Description from Novelupdates