DxD: I Steal Luck - Chapter 133: Xenovia and Irina

Demonic forces descended from beyond the skies, and malicious spirits roamed freely, prompting Duan Mingyuan, who faced unemployment, to decide to return to his old profession.Iterative updates in tactics, a second venture.To all you demons, if you must hold a grudge, blame my boss who let me go!Years later, Mr. Mingyuan, now a mentor to demons, made a statement during a media interview:“Yes, at that time it was just a simple job change.”“What?”“What do you mean by 'I am the real demon'?”— The large-scale documentary “How Demons Are Made” continues to air.————————An unbeatable novel, single female lead, a light-hearted read without any angst.With over 10 million words in completed works, you can consume with confidence~

What happens when a fanfic author with a habit of lying and scheming suddenly finds himself as a self insert during Duelist Kingdom? What happens when you have Yugi, Joey, Kaiba, and the rest encounter someone who knows all about every major player in their saga... and sees no problem with abusing said knowledge? Chaos, dear reader. Sweet, sweet chaos

Reincarnating into another world without having to start from the bottom was certainly a good thing.

However, what if the first place you appear is inside a coffin?

This is what Qin Yuan experienced.

While he had boundless strength, he was already at the end of his age so he had to seal his body.

The only thing he could do was to leave with a Spiritual Body whose strength was extremely limited.

The good thing is that there is a system that suddenly appears.

Ding

[Collect Karma Points.]

[You can buy anything with Karma Points.]

[Use 100 Karma Points to purchase a one week life extension.]
...

Living things really are ignorant – the greed to obtain the key to knowledge and the fundamentals of energy overpowers them. Little do they know that knowledge is full of lies and energy is the root of destruction. Us, mages, have mastered travelling through space and time. We are invincible, we can turn worlds into dust and you, mere ants, will be wiped out with no trace.

-Mage Adam

An A.I.(Artificial Intelligence) gets reincarnated into a world where he becomes a mage.