WHAT! I Have To Kill Heaven's Son To Live! - Chapter 164: G-Go away, monster!

A man who was once called the world strongest agent ended up becoming a teacher after his retirement to train the new generation of agents. After many years of training his disciples, he is killed at the age of 60 by the ploy of a secret organization and was reincarnated in another world with all his past memories.Though he was surprised by the magic and the strange species of that world, he adapted very fast to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his tight discipline in order to reach his goal: resume his career as a teacher which he left halfway through in his previous life.This is the story of a man who based on the memories and the experiences of his previous life, became a teacher who travels through the world with his new students.

[May I ask what is the method to distinguish the sex of Thunder Mouse? ]
[What kind of psychedelic beast is Thorn Seahorse? ]
[What is the superpower trick that Lipstick Magneto can learn? ]
The last subject of the college entrance examination, comprehensive science, suddenly became the basic knowledge of Eudemons!
Sitting behind the desk, Chen Qiyue looked blank.
hehehehehe
Looking at the contents of this test paper and the students around him who were busy writing, the corners of Chen Qiyue’s mouth twitched.
He must be dreaming.
Otherwise, the world is crazy!
—————-
Inside the Phantom Beast Breeding House,
“Sir, which one do you want to buy?” the waitress asked weakly.
Chen Qiyue pointed to one of the phantom beast eggs, “I want it!”
“Okay, I’ll take it off for you.”
“Wait! I choose this one!”
Chen Qiyue pointed to another egg.
“Okay, do you want to change it?”
“hold on!”
Receptionist: …
half an hour later,
Chen Qiyue happily embraced the black-and-white Laqiu in his arms, and left with the blue-spotted egg.
The female receptionist suddenly turned pale, her legs became weak, she fell to the ground, and began to cry.
This person is too bad, he deliberately pointed out all these phantom beast eggs.
Chen Qiyue spread his hands, who made my golden finger have to be like this…
Heck, I’m a decent person!

- Description from novelbuddy

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 ͡°)

“In a land far to the east, there exists a strange store that has rejected a three Michelin star rating multiple times.

The prices are expensive. A combo set of soup and egg fried rice costs 288 RMB. Oh, I forgot it also includes a side dish of pickles. Even so, very many people line up to wait.

That place does not accept reservations. It only lets in people who are waiting in line there. Countless people make special trips to line up there. Of course, there’s nowhere to park planes or cars.

Their service is so terrible, the customers have to serve their own dishes and grab their own bowls and chopsticks, and they even have to wipe down their own tables! God, the boss is simply crazy.”

—《 Michelin Gourmet Magazine》

- Description from Novelupdates