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Sungbin was ordinary, but after the death of his sister, he takes on the moniker of 'Neon Mask'. As Neon Mask, he becomes a psycho streamer and wages war on all gangs.

"A debt of blood must be paid back in blood."
"To avenge my sister, I will create an ocean of blood."

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Yi Zaha. The crazy demon crazy for martial arts. While he was running away after stealing the heavenly pearl of the Demon Cult Leader, he fell off a cliff. After thinking that everything was over, he opened his eyes to see that he had returned back to when he was a waiter… And he is being beat up for something that he didn't do. The crazy demon who returned to the beginning of his days as a waiter! Will he go crazy again, or will he drive his enemies crazy?

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Diablo Volfir, a mighty magician, was sealed for aeons due to the schemes of the 12 Gods, but 66666 years have passed since then, and he descends to earth once again!

I returned from hell, after hundreds of years to save Humanity!

When I opened my eyes, I was inside a novel.
[The Birth of a Hero].
[The Birth of a Hero] was a novel focused on the adventures of the main character, Choi Han, a high school boy who was transported to a different dimension from Earth, along with the birth of the numerous heroes of the continent.
I became a part of that novel as the tr*sh of the Count’s family, the family that oversaw the territory where the first village that Choi Han visits is located.
The problem is that Choi Han becomes twis

Yu Ijin was the sole survivor of a plane crash when he was little. After becoming a mercenary to survive for 10 years, he returns to his family in his hometown.

I want an S-Rank skill too! I want it so badly, I could die for it!
[You have awakened an S-Rank skill.] [But it only works when you die.]
HUH!? WHAT’S THE POINT OF GETTING ONE IF I DIE!!

An unimaginable talent without rivalry. Will it prove itself to be a blessing or a curse?