As A GAMER In One Piece - Chapter 15: CH- - MARINE HQ

An accident gave Ye Han a magical ability to see through. Since then, his life has become rich and colorful. He has developed the strongest business empire, dominated the gambling world, and rejuvenated his medical skills. He has become a master of medicine and Taoism. The goddesses rushed towards him one after another. As a man, and a limited edition man, Ye Han was under a lot of pressure and had to go on an exploration with a few tomb robbers. However, a shocking secret from ancient times to the present gradually emerged. in front of him!

- Description from novelbuddy

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

After Reincarnating into Naruto World at the Warring State Era as an Uzumaki, Masahiko thought that he got a useless System. He lived for 48 years as a normal, below average Uzumaki Shinobi.

That changed when he finally knew how the system works the day of his 49th Birthday!

- Description from Novelupdates

Getting Reincarnated as the Biblical Devil isn't something our protagonist ever thought was possible.He was a firm believer and knew how powerful God and the Angels were, they are existence that are not to be thrived with especially God.But here he was as the Archangel Samael, the left hand of God or the poison of God casted from Heaven to hell for rebelling against his Father, God.“what is the meaning of this, is this God's doing”our protagonist wondered as he knew very well that there is no way that the Almighty would not know something about this.So he decided to wait a little while to see what would happen to him but something else happened, what he had expected did not happened, so he has to take in the fact that he is now the new Devil, the Lord of Hell, Lucifer Bloody Morningstar.check out my other works.The Omnipotent SystemMy Infinite System