In Different World with Naruto System (WN) - Chapter 215: Stars blood lineage

Violet skies, a world undergoing massive changes, a deficient moon, interlinking voids…
When the world experienced a cataclysmic event,the majority of living things ceased to exist. Although humanity survived by hiding in the last safe zones, humans had to face mutated dire beasts and colossal source beasts that could break through the space barrier and enter the earth at any second.
Luo Yunyang, a young man who grew up in those calamitous times, obtained an attribute regulator and set out to walk the path of supremacy!

- Description from novelupdates

Quinlan, a simple office worker finds himself transmigrated to an extremely dangerous fantasy a land as a level 1 Commoner with nothing to his name but his wits- and a unique gift that accompanied his teleportation.No one in Thalorind could have predicted that this unassuming arrival- with the assistance of his powerful harem made up of exotic beauties- would one day rise to the top, redefining the very meaning of the term 'power'... And that he may have achieved said result by joining a criminal organization and clawing his way through its ranks.However, in the beginning Quinlan is painfully weak and alone, and thanks to his severe trust issues, joining a team is... hard. However, he soon notices that a lot of people have collars around their necks in this world... People that can't exactly betray him.“Oh, so you are a warrior who is looking for a master that strives to become the strongest? You found him.”“Wait, you are an assassin with an amazing, rare class who has a cruel master? Let me help you have a change of ownership...”“I know that you might not be a slave, but one of my classes is 'Slave Master', which would make you stronger should you become one... So how about it?”Follow Quinlan's journey as he grows in strength, amasses wealth, fights to the death, and meets lovely ladies.

After reincarnating as Zhou Xuanji, the prince of an empire, he thought that he would be able to live a worry-free life of luxury. He did not expect to be involved in a rivalry with the Empress herself, who forced him to escape from the palace.