I Am in Marvel with Unlimited Cards - Chapter 107: IMUC- - 106: SUPER NINJA

In 2040, The Earth was bathed in powerful radiation when a star went supernova, this radiation granted 50% of humans superhuman abilities but also created a nightmare for them as animals, insects, and carnivorous plants were mutated and became overpowered with intelligence, human started teetering on the brink of survival, a boy with no powers and no father, with a mother in a coma, seems destined for obscurity, but one night changed his life, with a new found hope to cure his mum from the everlasting sleep—Gene Elixir— he went on on a journey that would reshape his destiny...~Voracious Sovereign... Gene Devourer...Pray you won't be devoured by this power you wield which hunger is insatiable~~You call yourself an opportunist... But... you aren't free. A hungry man is not a free man...~

A world where people awakened abilities called Skills to those who come of age. The protagonist, Awakened with three godly cheat skills, does he uses them and rise to an existence called a hero or becomes a person who only cares about his own life.

That lonesome night as he lays dying in the hospital, fearing of death and desiring the taste of life, his mind became unprecedentedly complex with mixed emotions.

Myasthenia gravis — an incurable disease where one’s muscle slowly degenerated until the day when one can no longer move and only tears may flow.

“Is this… dying?”

When he opened his eyes again, he had crossed over into the body of a two months old infant, right in the middle of an assassination attempt.

He was born as the illegitimate son of a noble. His name was Fan Xian; and with that name came the burden of deep political secrets and the legacy of his mother.

He understood; to survive, he needed unparalleled strength, money and political power.

To a new world with the luxury of a new life, so named; Celebrating the Remaining Life.

- Description from Novelupdates

Guan Dounan traveled to the world of Conan, and unexpectedly found that he had a stand-in “King of Comedy” and became a stand-in messenger. However, this double actually looks exactly the same as that “little black”?

As the so-called stand-in messenger will attract each other, Conan is the stand-in messenger, Xiao Ai is the stand-in messenger, Kidd is the stand-in messenger, Xiao Lan… Oh, she doesn’t have a stand-in, but she has double A.

In addition to this, there are many stand-in messengers who choose to embark on the path of crime, and it is time to count their sins.

“Little guy, your ability is the most useless!”

“I understand, the ability of gin! It’s…”

“Yahahahah, it’s a stand-in of the same type as my comedy king.”

“Senior Guan! Hurry up and think of a way to use your invincible stand-in!”

“I Guan Dounan just want to live a peaceful life…”

(Original stand-in, based on the world view of Conan, the characters in jojo will occasionally make cameos)

(On the basis of the original case, the magic change is not limited to the pure stand-in ability, but also has supernatural, demon, and superpower elements. In short, it is metaphysics to the end.)

(Slow heat, although it sounds weird to say this, but in the early stage, I mainly laid various foreshadowings, so it will look a little dull)

- Description from novelbuddy