Dragonheart Core - Chapter 122: To the Trouble and the Thrall

In a world dotted with World Entrances to a demon world, demons have invaded humans for centuries. Humanity has united and one of the most ancient sects in the world, the Archean Mountain Sect, has set up an entire education system in the form of Dao Academies and defenses at the World Entrances.

Fate, a gatekeeper who had been working for the castle, is beset by a few burdens.

An apocalypse for everyone, surviving in the ocean.Extreme weather, Extraordinary Sea Beasts, cunning and deceptive pirates, natives with ulterior motives... Danger lurks everywhere.Upon waking up, Chen Qing found herself suddenly in an ocean survival game, and she had awakened her unique Extraordinary Ability—Everything Can Be Upgraded!Everything Can Be Upgraded combined with the Mechanic profession, what kind of sparks will it ignite?The strongest Mechanic on the sea, Chen Qing's journey begins with a Mechanic's introductory guide!Mechanic Chen Qing, one person! Is equivalent to one nation!!

Zero, a 35-year-old mercenary, after being betrayed by one of his teammates who told his enemy about him. He chooses suicide so that he can kill his enemy and his traitor teammate. After that, he was reincarnated into the world of magic, in the body of an 18-year-old teenager with the same name as him. However, his body does not have mana or the talent for magic. But with the help of the cultivation system, he has unrivaled power in the world and has a harem of beautiful wives.