The supporting character's harem is very normal - Chapter 206 I just want you to be safe.

Caelith doesn't want too much in life, a clean home, a happy mother, and maybe a girlfriend. Raised in the Stormont manner, one of the highest ranking noble household in the kingdom, he grew up a bastard, mistreated and abused by the main lineage.At the tender age of sixteen nobles undergo a divine ceremony, receiving the opportunity to be blessed by the gods however he receives Nothing.Caelith struggles in this world but at the end of the day, He is Nobody, and he has Nothing.

In one moment, he was walking down the street with his little sister—In the next, he had traveled to the world of One Piece, carrying a system that could extract, record, and fuse genes to cultivate powerful lifeforms.Thus began a leisurely and carefree life in the most chaotic world imaginable.When bored, he’d snatch a bit of heavenly tribute meant for the Celestial Dragons.When curious, he’d raise a few cute kittens and bunnies just for fun.When restless, he’d wander through the territories of the most fearsome powers in the New World.Life is beautiful—so why bother taking anything seriously?

In the dream, Yi Meng will incarnate various non-human beings in the beautiful heavens.

Justice League, the first Doomsday head of Superman’s Kryptonian homeworld. Marvel Universe, Artificial Intelligence of Iron Man’s Daughter. Harry Potter, The Sword of Gryffindor at Hogwarts.

…

When the people of the motherland came to reality, they looked up to the sky and laughed maniacally, trying to become the gods of all mankind.

Yi Meng decided not to pretend.

“People from the motherland invaded the real world? Fortunately, I am the Doomsday Superman!”

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There are already two premium Marvel fanbooks with a high order of over 20,000—[My Marvel Superman Girlfriend] and [I Draw Unlimited Cards in Marvel], quality assurance!

- Description from novelbuddy

In her last life, as a cold-blooded assassin, she died without leaving her body behind and was reborn to the time when she was 15 years old with a supernatural ability.

Teaching a lesson to the parents whom are jerks, playing around with the selfish younger sister, slapping the faces of weirdo relatives.

Outstanding and high combat ability, who said that both looks and intelligence can’t be applied to the same person? With that said, she got the attention of a military officer.

“You’re suspected for the crime of murder, hacking into the general server system…… There’s too many crimes to be listed, you need to be apprehended immediately.”

Song Ye raised her eyebrow and got onto the military officer, “According to Young Master Qin, if I want to be cleared off of those crimes, is there any good suggestion for it?”

A certain someone’s eyes darkened and said, “Marry me.”

- Description from Novelupdates