Summoned as an SSS-Rank Hero… with My Stepmom and Stepsisters?! - Chapter 47: [R-18] "Hikari...?!"

Reborn in the Marvel universe, Hawk learned one brutal truth—safety wasn't something you were given, you had to fight for it. He made himself a promise that day, committing to a path of relentless training and iron discipline that would define the next several years of his life.He didn't want a serum or a suit of armor, he wanted to unlock the power buried deep within.On the day his vow is fulfilled, he awakens a power that sings the song of creation itself, a force that can bend reality to his will.In that same moment, the sky over New York cracks open, and an alien armada pours through...

A boy from 21st century Earth, met an accident and later was reborn in Naruto’s Ninja World.
He is born in Uchiha Family and becomes the useless brother of Itachi Uchiha and Sasuke Uchiha…. Let’s see how he changed the Naruto world.

- Description from Novelupdates

The Spirit Network, known as【Deep Sea】 connected five continents as human civilization surged forward; yet, they were oblivious to the impending eternal night. With the Extraordinary Awakening, the edifice was about to collapse. Flesh is weak and pitiful, how could one ascend? The story began when Gu Shen, an ordinary youth, received a ruler that bore the truth. He peeled back the corner of this extraordinary world, becoming the largest moth among the thousands that dashed into the flames. If winter is coming, I will climb against the steps, overturn the thrones of kings, shatter the crowns of falsehood, destroy the scepters of injustice. I will become humanity's last, Bright Barrier.

A cauldron, a secret forging method, and his blood created an ultimate weapon. The youngest Sword Crafting Master on Earth had been reborn from another world. With the Nine Yang Divine Furnace and a scroll of Divine Equipment, he was like a fish in water, standing at the pinnacle of the martial way. There were tens of thousands of clans, billions of cities, and countless experts. He was the master of ups and downs!