Team Rocket's Second-in-Command! - Chapter 1: Team Rocket’s Second-in-Command! []

A teenager who unexpectedly gets transported to the modern world from ‘the world of the immortals’ . He finds himself in the body of an ordinary guy. He wants to go back to his world and for that, he will have to practice to get stronger and investigate the reason why and how he crossed through to this world.

- Description from Novelupdates

With Ye Chen, who inherited the devil, reborn the Phoenix continent, invincible, there will be any unknown secrets waiting to be solved here.
   The “City Revival Master” has been completed, and my brothers support it ~~

- Description from ~

At just four years old, Ryosuke Hyuga trains relentlessly in the Hyuga clan courtyard, sweat dripping from his brow and determination burning in his eyes. Once a member of the oppressed branch family, Ryosuke was destined for the curse seal and a lifetime of servitude to the main family. But fate had other plans.Reborn into the world of Naruto, Ryosuke awakened the Byakugan at birth — a feat unheard of even among the Hyuga. With his rapidly advancing eye techniques and innate talent, the clan hails him as a once-in-a-generation prodigy.Hyuga Hiashi, the clan head who temporarily adopted him, watches his progress closely. The moment news arrives of his newborn daughter's birth, Hiashi makes a shocking declaration:“From this day forward, you are the future husband of my daughter, Hinata. You will marry into the Hyuga main family.”No cursed seal. No servitude.Ryosuke will rise — not as a pawn, but as the shadow behind the Hyuga's future.

After the ‘100-Year War’ between the Necromancers and Priests, an all-time genius who’ll shake the power structure was born. “Am I a rare case or something? Do I have talent?” A potential beyond all imagination. He obtained his father’s undead army and entered the great Necromancer school of Kizen that divided the continent. Geniuses are geniuses, even when gathered among the elites. The research community was flipped on its head by the appearance of a new case. Professors wouldn’t leave him be alone, wanting to make him study directly under them. Officials from all over the kingdom and heads of organizations fidgeted over whether to scout him. “Professor! When can I make a Lich?” “Gimme a break. How talented are you? You’re crossing the line, honestly.” A genius among geniuses had appeared.