Honkai Impact 3rd: The Conspiracy.

(Honkai Impact 3rd x Makoto Yuki/Minato Arisato! OC!) (other franchise elements -Deus Ex, Fallout, and more- in story!)

WARNING: This story contains swearing (mostly by certain white tuna and the mute kid and explicit violence!)

A mysterious figure appears in the shadows, wearing some type of cyan hazard suit, speaking "I'm surprised this children in particular managed to survive the Honkai augmentations we did to him, he's truly a special case, being the one alive from the dozens of children we captured."

"However, this marks a new age for humanity, augmented super soldiers at MY disposal, soon the world will know what's to come, Honkai and Herrschers alike wouldn't compared to this project once it's fully finished, without nobody to fight it, i can become a king, or better yet..."

"A God."

The mysterious figure simply fades away in a bright light, however, as he vanishes, an alarm goes off, on the room with the augmented child...

Everything faded into black, only the sounds of agony, screaming and blood drops was the unnerving ambient for the entire underground facility...

(Enter Nathan Hawthorne, the supposed "Mankind's next evolution", being kidnapped during 2000 when the second impact occurred, he was used as a guinea pig to test Honkai augmentations on the body of childrens, he was the only one to survive.)

(After certain fateful event, he managed to escape said facility, but ending with traumas due to the experiments, could he finally find peace within himself, with the aid of some trio of girls, or will he succumb to his past and lose his mind totally?)

(Find it out on Honkai Impact: The Conspiracy.)