Luo Yi, a high school dropout in his original world, was isekai’d into the world of the Witcher 3. Starting out as a weak boy named Roy in the village of Kaer, Lower Posada, he was determined to grow stronger, no matter what it took. The first step toward becoming a legend was to kill. And his first kill was… a rooster. ‘You gain 1 EXP.’ Of course, Roy had his own cheat system like all the other isekai protagonists. His first step to becoming a legend started now…

Guilliman originally thought.

The life of a demon hunter is to eat, sleep, and kill demons.

But what he didn't expect was that in addition to demons, he had to deal with many things, such as unruly people, nobles, cultists, sorceresses, demon girls, and goddesses.

And after he studied the life of the legendary demon hunter predecessor Geralt, he concluded that the sorceresses were the strongest weapon of the demon hunter.

…………

This is the story of a legendary demon hunter who traveled through the heavens and the worlds, killed countless terrifying demons, saved countless worlds, ignited the divine fire, and killed to become a god.

This book is also known as "The Demon Hunter Badge Moved, There Must Be a Sorcerer Nearby", "Let Go of That Goddess, Let Me Come", and "What's Wrong with Demon Hunters Like Demon Girls".