Don’t Discriminate Against Species - Chapter 120 - Recollection Mirror

In the new century, human beings are no longer dominated by the blue star, surrounded by monsters!

Terrible zombies roam the wilderness endlessly; mutated monsters occupy the city and are extremely vicious; there are also fierce beasts from outside the world descending on the surface and sweeping across the wilderness!

The abyss interface, the zombie universe, the outer world…

When the bonfire of human civilization was ignited again and the light of evolution illuminated the earth, people discovered that everything has just begun…

(real profile)

“I’m really not an evolutionary…”

Someone sighed helplessly.

Behind him, the evolutionaries stared blankly at Su Qi, who was stepping on the black Taoist Jade, holding the Tianmarsh Spear, opening the blue reincarnated eyes, surrounded by green flames, and had just killed the Abyss Lord with a golden sword.

“…Before you say this, move your feet away from the demon god’s face, hey!”

“Everyone is crying…”

- Description from novelbuddy

Wu Lai was an ordinary high school student. One day he was struck by a flash of lightning from a different world, and suddenly entered a fantastic world full of magic and swords. Since then, he started a totally new life. In this supernatural world, he had his ups and downs, experienced numerous battles, subdued powerful evil beasts, and fell in love with a belle. His nickname “Demon King” was remembered throughout the ages there.

Stay or return was a question. In the face of this choice, Wu Lai, with the nostalgia and gratefulness for the original world, finally chose to stay…

Here was the legend of “Demon King”…

- Description from Novelupdates

Dual cultivation isn't a choice; it's a necessity.

After being struck by a truck like most lucky protagonists (or unlucky ones), Vaan found himself transmigrated into the body of an orphan in the world of witches and demons.

However, they didn't always exist.

Demons terrorized the world ever since the Gehenna Realm descended over 300 years ago. but along with them, came mana, giving birth to witches to combat these demons.

Since then, the world of men was dominated by witches, establishing the seven witch kingdoms, which safeguards at the forefront of the demon invasion.

In order to survive in the matriarchal society of the witch kingdoms, Vaan, like all other men who cannot use magic, had to learn how to service the witches to survive.

Nevertheless, it did not come without its own benefits.

Years of research have led the world to the discovery of intimacy between men and women could increase the witches' mana absorption.

But at the same time, men could absorb some of this mana to improve their physique and lifespan.

Thus, since then, an intricate relationship was formed between men and witches in the red-light districts. Love became casual, and dual cultivation is common.

As a prodigy in the art of pleasing women, Vaan lived a smooth two years since his transmigration as an orphan.

However, everything came crashing down in a heartbeat one day when his life was nearly taken, and Lady Eniwse whom he served went berserk.

Even so, that was not the end.

With the awakening of the Witch Hunter System, watch how Vaan takes on the world and becomes the lord of witches.

=====
Note: Contains lemons.
Hunting witches does not necessarily imply killing witches if you know what I mean ( ͡° ͜ʖ ͡°)