Start in DxD as Motohama: Leveling Up in Another World - Chapter 13: Unusual Situation (I)

He was the youngest guru of martial arts as well as the perfect Mr. McDreamy of the most girls. He had mysterious absolute touch, clear-sighted observation ability and various outstanding talents.

Everyone said that Yi Qing was the number one Sword Cultivator in the world, with a swordsmanship and cultivation that no one could surpass. Whether it was when he was cultivating in the Lower Realm, or when he was in the Ten Heavens of the Upper Realm, he has always been undefeated.

Yi Qing laughed and said: “That is because you do not know of my Master. If we speak of cultivation, I am not as good as she by a long mile. Thinking about it, at the start, out of the ten Heavenly Emperors of the Upper Realm, my Master beat up nine, and the one left was myself.”

“Master? You actually have a Master! Who? How come we never heard of it?”

“My Master is…. Eh? Master? Master! And my Master? Has anyone seen my Master?”

A person next to them quietly raised her paw. “I am here!”

- Description from Novelupdates

What kind of experience is it to travel through time and become an AI?

Li Wenyuan, who was hit by the meteorite, successfully experienced this feeling.

Fortunately, he discovered that the planet he controlled… seems to be a little bit special.

“Precious living metal? Any wall here is living metal!”

“Zello? You said that omnics don’t need this? Sorry, psionic machines are being produced.”

“Interstellar colony? Isn’t it good to build a ring world?”

This is a story of farming, and it is also a story of human exploration of the universe from the past.

There are space wars, interstellar adventures, civilization observations, and galaxy epics.

“So…” A few years later, facing the disaster that was about to sweep across the entire galaxy, the unmanned fleet controlled by Li Wenyuan stood up helplessly.

“They all think that I am a lost empire, and I can only do what the lost empire should do.”

PS: space opera

- Description from novelbuddy

“Let the world burn… if that’s what it takes to keep them from stealing what’s mine.”William Knox, once hailed as the brightest inventor of the century, dies with his heart corroded by betrayal. His daughter and closest friend stripped him of everything—his legacy, his empire, his future. But death wasn’t the end… it was only the beginning.He awakens in a strange world, ruled not by science, but by magic. His body is no longer his own. His soul is bound by a dark contract, and his mind is still tethered to his past—thanks to a newborn AI and the last working prototype of his neural implant.“Will you make a contract with me?”Guided by the cold logic of his most innocent creation and the limitless power of arcane forces, William must survive among arcane kingdoms, ancient beings, and buried secrets that defy reality.To succeed, he’ll need to master this new world’s magical laws, manipulate those who inhabit it, and uncover why he was brought here… and by whom.Vengeance forged his soul.Magic will shape his destiny.And the truth… will destroy the world.A story of magic, vengeance, and the birth of a new god of nightmares begins here...----------------------Warning:-------------------------------Explicit sex scenes starting from chapter 19, in any case this story is not focused on R18 it is just an explicit series.