MTL - Mr. Zhan’s Little Demon is All Grown up - Chapter 2550 be found

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

“Marry me under the conditions that we will divorce in 5 years.”

This is a story about a young man who sought to fight against his destiny. With the help from billions of Dragon Energies trapped on the Rising Dragon Pillar in his body, he emerged from the dark and quenched himself with the blood of ancient dragons. He fought the heaven with the Buddhist Art for the people he loved and built the Eternity Kingdom with his own hands. This is a story about the rise of the Martial Emperor who will rule both earth and heaven.

- Description from Novelupdates

Nicholas Crowley is used to scraping by in a world where magic is dying. The modern age has left the arcane behind, and the few remaining practitioners fight over scraps like starving dogs. That, however, is no longer his problem. While performing a ritual, something interferes, and his soul is ripped from his body. He awakens during the Class ceremony as Nick, a kid living on the frontier of the Green Ocean, a seemingly infinite expanse of trees brimming with rare ingredients and powerful creatures. Mana is abundant here, and the omnipresent System allows for feats he had once thought impossible. And yet, not everything is as rosy as it seems. Legends walk the land, and Gods require their due. Will his experience as an Occultist be enough to navigate this wild new world?