Toaru Majutsu no Index - Volume 3, Chapter 1: Imagine Breaker. Level0(and_More)

“Even if this universe is truly nothing more than a brutal bloody shadowy forest, we Cultivators will burn all that we have just to give off a single weak flickering spark in the darkness!

No matter how weak each spark is, how short-lived, how small… As long as the sparks flow unabated, then one day one of those sparks will light some tinder, and that tinder shall light some fallen branches, and those branches shall set ablaze each and every last tree of the forest!

In the end, even the smallest sparks will eventually set the shadowy forest ablaze, and illuminate the whole world!”

In a world teeming with cultivators, Li Yao, who makes his living collecting scrap metal, encounters the soul of a titan powerhouse from forty thousand years in the past.

- Description from novelupdates

At age 5, Amon unlocks the unique «Fury» genetics and is what caused his behavior to change.

After living with his grandparents for 11 years he learned to behave. For reasons he can’t know, his grandparents faked their deaths, and now he needed to move.

Now he would have to face a new challenge which was to live with his mother and stepfather and two twin sisters not linked by blood and go to school.

In regards to the MMORPG Cross Reverie, Sakamoto Takuma boasted an overwhelming strength that was enough for him to be called the Demon King by the other players. One day, he gets summoned to another world with his appearance in the game. There, there are two people that insist “I am the real summon master.” Takuma gets slave-turning magic used for summoned beasts cast on him by the girls –

Yu Mian has been an orphan since she was a child. Fortunately, she has a kind person to support her, and the kind person is a starlet.
With gratitude, she became the little star’s first fan, sent him messages of encouragement, helped him make the rankings, and helped him tear up the sunspots for him, and accompanied him from obscurity to the top of the entertainment circle, and won the actor trophy.
Yu Mian thought that she would silently protect him for the rest of her life, but in a car accident, she transmigrated into Yu Mianmian, the fiancée of the movie emperor’s family.
On the first day of transmigrating, the film king appeared in front of her. Before Yu Mian could recover from the joy of seeing the idol, she saw a man with a cold face handing over a piece of paper.
The voice was low and indifferent: “We are just a family marriage, we just need to play around.”
Yu Mian Xingxingyan nodded, took the contract and smiled so much that she couldn’t see her teeth. Idols are for looking up to. As a qualified fan, being able to get close to her is enough to satisfy her.
Once dressed as a wealthy lady, Yu Mian, a commoner, just wants to eat and wait to die, and spend money and money on idols!
But why did the idol, who said he was good at acting on the occasion, look more and more wrong in her eyes?
One day, the film king blocked her in a corner: “When will our marriage be held?”
Yu Mian blinked suspiciously: “Didn’t you say you don’t want to get married too early?”
The film emperor gritted his teeth secretly: “I changed my mind, and suddenly wanted to try what it would be like to be called my husband.”
Lin Jianshen: I call my husband every day on the Internet, when will I actually call him once?
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【Daily Stream/Sweet Cookies/No Cruelty No Scum】
The author is not in the circle, please forgive me if there is any inaccuracy.

- Description from novelbuddy