A Hentai System in the World of Danmachi - Chapter 163 - 162 - Luan is playing with Ais.

This is a world where Awakened beings and Mutated Beasts coexist.Zhang Ping was fortunate enough to become one of the Awakened, but his abilities were classified as useless.Unwilling to live an ordinary life, he boldly swallowed a Contract Gem that most people avoid like the plague, and made a contract with himself.From that moment on, the entire world opened up to him.Ever-changing superpowers, endless Mutant Beasts...

This is a story of a little man who walks forward silently, in awe, and strives to chase his dream.

- Description from novelbuddy

I exist in the darkness, disappear under the bright light, and will eventually devour the sun and turn into the shadow of all things… Known by people as the indescribable terror of darkness; the king of shadows; the dark day; the existence of the shadow of the world , is still just a somewhat special high school student, facing a weird death game…

- Description from novelbuddy

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.