Demi-human Girls Completion Manual - Chapter 22 - . Renie

Ukei Kaito fought a desperate struggle in order to fulfill his role as a summoned hero. He defeated the Demon Lord and saved the very world, only to meet an end filled but with betrayal. The companions that he’d trusted throughout his journey betrayed him and killed him by sticking a blade through his chest.

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

The Hacker X was known as the #1 hacker in the whole world.

While being chased, this mysterious hacker entered the #1 corporation to hide in.

The cold and distant CEO of the company watched her every move, and decided to see what she would do inside his company.

Little did he know, after watching her, he was entrapped in her beauty and personality, and decided to observe and help her behind the scenes.

One day, the two cross paths

Little by little, they got to know each other and became closer.

Join this adventure of the beautiful hacker and handsome CEO as they uncover more about each other and develop feelings for each other!