Became a Failed Experimental Subject - Chapter 20: So Annoying

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When the Demons and Angels of the 99th floor detected a threat to their reign, they teamed up to topple the man who'd placed them in such a situation.

The Lord of Sins, a walking calamity of the Heaven's Spire, had put pressure on the transcendents no mortal had ever done.

However, before the Lord of Sins could revolt against their reign, the Demons and Angels decided to nip the threat in the bud.

Manipulating his clanmates, using other clans, controlling fate...

They used all powers available to them in an attempt to halt the advance of the Lord of Sins. Eventually, it worked, and the Lord of Sins fell from grace.

But it wasn't a happy ending for the vicious transcendents.

“I'll return one day, stronger than ever and as a force even you can't touch! I'll become the Lord of Sins again!”

The man returned to the past with a goal in mind.

Everything else was just an interference.

“Return of The Strongest Player” is a gripping tale of a man's ascendance. His journey back to the pinnacle of strength, the adversities blocking his path, and the comrades he eventually acknowledged.

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A man is reborn into the world of Avatar: The Last Air Bender as a waterbender from Katara's tribe. Best of all, he was the same age as her, and he had a system with him to help.He knows the future and a system that lets him continuously get stronger by completing quests or long-term missions, as well as giving him the ability to copy abilities from others for himself. He will become invincible in the world of Avatar, even more so than the Avatar himself.

“I hate this world. I hate everyone. There's no justice for the weak,”Once happy and carefree, Reign's life took a dark turn when he was kidnapped and undergone brutal experiments.These trials broke not only his physical body but also shattered his mind.In the end, his body couldn't withstand the ordeal, and he died like a pitiful lab rat.But death wasn't the end.He woke up in a new world as a corpse, armed with the Ultimate Mutation System.A system that enabled him to mutate and gain power in exchange for his own humanity.Determined to avoid being exploited again, he sets out to become a true powerhouse.He knew that being weak would only make him a target, especially now that he was a monster.“Kill or be killed.”That was his only option.

[Host, host, I am the System, I can help you conquer the world and the witches with various personalities.]Xi Mu: Hmm... Isn't this an action game? When do we start slashing?[Right... This is an action game, but I suggest that the host also try to seduce the witches along the way, there are generous rewards.]Xi Mu: What rewards?[Of course, the perfect romantic experience!]Xi Mu: No need, I've already played through the romance plotlines. Now I just want to go on a rampage and speedrun the game.][...]