Tomodachi no Imouto ga Ore ni Dake Uzai - Volume 1, Intermission: Mashiro’s feelings

Su Yang was bound to a ‘Slag Cleansing’ System, each world he went as a slag Shou that was rejected by the Gong. In order to return home as soon as possible, he began to work hard by counter-attacking the people who rejected him.

Later he found that these people who were supposed to have normal attributes going by the script were all abnormal. In the face of this rabid animal, Su Yang was forced to abuse his heart again and again.

This story is also known as:

“I said: I am not that slag, will you still accept me?”

“The day’s when a puttering man is in the world.”

“Insufficient words will open the purgatory/hell mode.”

Tentative Worlds:

The President’s Unfaithful Lover

The Prince’s Escaped Fiancee

Crime Lord’s Undercover Boyfriend

Ghost King’s Grim Student

Emperor’s Confession

Marshal’s Omega Adopted Son

The Zombie Lover

- Description from Novelupdates

Zero, a 35-year-old mercenary, after being betrayed by one of his teammates who told his enemy about him. He chooses suicide so that he can kill his enemy and his traitor teammate. After that, he was reincarnated into the world of magic, in the body of an 18-year-old teenager with the same name as him. However, his body does not have mana or the talent for magic. But with the help of the cultivation system, he has unrivaled power in the world and has a harem of beautiful wives.

[You Have Been Chosen.]When the world crumbled, I was nothing more than a jobless loser, left to rot on the streets as the dead devoured the living.Until I heard that voice...[The Ruler System has activated.][Rank 1: Loser][Followers: 0/1]A system that lets me recruit followers, copy their skills, and grow stronger through their actions.My first subject?Mu Qinglan.The ruthless Ice Queen CEO I once called “Boss.” Cold, untouchable... and now infected.As her bloodthirsty jaws closed around my neck, I barely saved her with the system’s makeshift cure.[You Have Recruited Mu Qinglan (S-Tier)][You have copied Mu Qinglan's [Leadership] skill][Please Choose the second skill to copy][+100 Ruler EXP]Every follower I command strengthens me.Every kill feeds my dominion.In this world of death and chaos...I will build an empire of S-Tier Beauties and ascend as the Apocalypse King.For my name is John Wang!

Ernest Quelt, the alchemist renowned for his unparalleled mastery of alchemy, has perished.But his death wasn't a noble sacrifice in battle, nor the result of a failed expedition—it was a betrayal. The very comrades he trusted most turned on him, driven by envy of his growing power.Yet fate wasn’t entirely cruel. With his final breath, Ernest's gaze fell upon the tube that contained his greatest achievement: a perfect artificial being known as the Homunculus.More than just a vessel resembling a human, this creation harbored the power of a catastrophic beast—one that had once nearly brought the world to ruin.