Reincarnated as a step-dad in a fantasy world - Chapter 329: Catching up (2) (R-18)

After laying down his life in a final act of sacrifice living in a world plagued by monsters, Zion expected only the embrace of death. Instead, he awakened in an unfamiliar world—reborn as the son of a formidable Duchess, heir to a lineage of wealth and influence. Yet, luxury and privilege were not what fate had in store for him.Marked by the Goddess who saved his soul from death’s grasp, Zion is tasked with a singular, harrowing purpose: to annihilate every God in his new world. These divine beings, revered and feared, now stand as his sworn enemies. But before he can challenge the heavens themselves, he must forge himself into a weapon of unparalleled might—one capable of shattering both mortal and immortal foes alike.To defy the divine is to invite wrath beyond reckoning. But Zion has already died once—what more does he have to fear?There are only a few 18+ Chapters within the first 60 chapters but will increase a lot after that.

In the early world of immortal cultivation, there was no physical cultivation among immortal cultivators. And a top bodybuilder who came from the earth has opened up a new path here and became the ancestor of physical training.

- Description from novelbuddy

A man who was once called the world’s strongest agent ended up becoming a teacher after his retirement, to train a new generation of agents. After many years of training his disciples, he was killed at the age of 60 by a secret organization’s ruse and was reincarnated in another world with his memories intact. Though he was surprised by the existence of magic and the strange species in that world, he quickly adapted to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his rigorous discipline, in order to reach his goal: Resume his career as a teacher which he left halfway through in his previous life. This is the story of a man, who, based on the memories and the experiences of his previous life, became a teacher who travels through the world with his students.

"The boy has no powers," they claimed.