The Strongest Body Customization System - Chapter 34: Elder Level Strength?

Lu Chang’an cultivated the reincarnation of immortals for two generations, and in the third life, An Wengou reached the Nascent Soul stage, solved the mystery of the reincarnation stele, and then practiced the mediocre ancient health-preserving skills.

Avoid fighting and fighting, operate steadily, and form good relationships with people.

After a long cultivation career, I got acquainted with growing characters, upright leaders, celestial beauties, demon giants, evil cultivators, thousand-year-old monsters, behind-the-scenes chess players…

Watch the ups and downs of the world, the ebb and flow of the tide.

Unknowingly, it has become a living fossil in the world of cultivating immortals, an evergreen tree through the ages.

…………

Mortal flow, stable, pseudo-longevity, decisive killing, and normal three views.

- Description from novelbuddy

They call him Ghost.A name whispered in fear across warzones, black markets, and underworld circles.To the world, he's a phantom—a faceless mercenary who leaves no trace but bodies in his wake.To his enemies, he’s a death sentence.To his brothers-in-arms in Graveyard, he’s family.But to himself... he's a haunted man searching for a past stolen in gunfire and smoke.After a flawless mission deep in the Eastern Province, Ghost returns to the hidden forest base he's called home for sixteen years. Yet the victory is short-lived. His foster father, the commander delivers an unexpected order:“That was your last mission.”Now, Ghost—real name Miles Sterling—must step out of the shadows of war and into a world he’s never known. Guided only by a scarred letter, a fading memory, and the voice of a woman he hasn’t seen since the day everything was taken from him.But war forged more than his body and name.Behind the mask, behind the scars, Miles has another secret.One he’s kept hidden even from his brothers in arms.He’s not just a weapon.He’s a ghost with a fortune—a hidden empire he built in silence, across borders and black markets, forged in strategy and blood.A man of many names, and many shadows.Beneath the bullets, tattoos, and silence lies a truth buried in ashes.And Ghost is about to dig it up—one letter, one enemy, one memory at a time.

In the foreign world, the martial artists dominate the world and the sword of the emperor controls the fate of hundreds of millions of lives! Long Yu, the number one killer on Earth, after dying, takes rebirth in this new world in an aristocratic family of martial artists but faces rejection because he is unable to practice martial arts.

A soul was employed by a higher being to help him manage his world. How will our protagonist live her life to the fullest while also fulfilling her new duties?I don't own Naruto. I adjusted the story to my liking. English is not my main language so don't bother about grammar mistakes too much.