One Piece: God of Space - Chapter 615 Fei Duo’s arrangement

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.

Once a regular high school student, the protagonist gets sent to another world via truck. He reawakens to find himself contracted to a girl about the same age as him before passing, and that his body was no longer that of a human. Given a new name as the girl's contracted spirit, he spends his days at her side._ _ _ _ _ _ _ _ _ _ _This is not a novel I will be updating multiple days a week. The most likely outcome is me updating it once a week, but if any readers would like to read my other works, I would like to suggest reading the story I update most which is “Level One Isn't Weak!”.

She was reborn in the 1970s, when there were no mobile phones or TVs, people lived in poverty and marriages were arranged by families. He, the wealthy and powerful head of the regiment, who governed the local army, helped her join the army so that her family would no longer be bullied and could live a good life. And Suddenly, he proposed marraiage to her...

“If I don’t die… I swear I will act on all my evil thoughts..”

Not exactly everyone’s typical thought when they’re about to die. What will a cowardly young man do when reincarnated with the evil powers to redefine his destiny? Can the natural kindness of human nature triumph over evil? Will he become the cold-blooded demon king of legend, or will he forge his own path and rain down another kind of terror?

- Description from novelupdates