The next few days, Angus having a class like usual. He also went back to his training secretly. His spar with his father is a reminder for him.

If his father could get hurt easily during his fight against high level monsters, Angus will never survive fighting them since he couldn't even land a hit on his father. ​​

Although the wound is because of his father's carelessness. However, it also serves as a reminder that monsters could easily kill people from civilian society. Even in the past, grade seven people could be killed by a monster overlord.

After learning more about the monster from the book and course, Angus also found why the monster is stronger than other races. For him the monster is intriguing yet also gives a sense of dreadfulness.

This is the reason why he is more focused to learn more about monsters despite a busy schedule throughout the course. He feels the more he learns about it, the more he feels a sense of emergence from the monster.

The ungraded monster may be weaker than some ungraded people. However, starting from the third grade and occasionally second grade there is a huge change in monster strength.

First is their miasma (the corrupted mana) concentration. For third grade monsters and above with few monsters at grade second, their miasma attack already can't be healed or purged with normal healing spells.

If the wound left it alone, the miasma will soon corrode the person and could lead to death. Even a small wound that contains miasma is very deadly if left untreated for a long time.

Like Angus's father said there is no true way to heal this kind of wound before. Until now the only way to handle it is by purging the miasma using more purer mana.

However, after the 3rd grade monster above, the miasma became so thick that it could act like a poison by corrupting the mana in one person's body.

In this case there's no true way to heal this kind of wound except for Angus's method. The miasma will slowly attack and corrupting the mana inside the body.

Most people could only suppress the miasma using his own mana. But, if the wound is fatal or accumulates too much it will soon claim the owner's life.

Because of this, receiving a fatal wound from a high grade monster also means as sentenced to death. The high grade people may resist for a while but soon they too will die after sometime.

Learning this Angus feels like a headache and a more troublesome situation will be coming for him.

'Damn, I guess I will become a sort of doctor after this. Tch… I will be more busy because of my blunder. However, I don't regret it. My father's life is more important... or not.' Thought Angus inwardly while remembering his sparring against his ruthless father.

As for the other reason is because of the monster's growth in strength. From the record and books, it said that every time the monster evolves to higher grade their strength is at least doubled.

While for other races their strength will not always double after they evolve into higher grade. Moreover, the one that doubled not only strength but also its dexterity, vitality, skin toughness, etc.

Basically it could be said every time monsters evolve into higher grade they are twice more stronger than before.

Combined with the unique feature of each monster and its long life span, it is a miracle that the monster has not taken over the civilian society yet. Most of the reason is because high grade monsters rarely go outside its habitat.

While the monster overlord that seeks destruction like the one that recently reborn always gets hunted as soon as possible.

No matter what kind of price the society will pay, they always hunt this kind of monster, especially the intelligent one with more wisdom.

So, if they are really dangerous why not tame and build friendship with them. Some pacifist experts also try to do that. However, like a habit and instinct, a monster will always bear its fang towards civilization society.

Some experts theorized that the more concentrated miasma they have, the more aggressive their behaviour towards civilization people with mana.

Countless other experts also research the way to eliminate the monster without casualty by using mass destruction weapons or even bio-weapon. However, all of them fail for the same reason as these kinds of weapons are useless for high grade people.

High grade people's resilience is so high that they could withstand some small scale bombing unscated. Monster has better resilience, so it will be useless to launch such an attack towards the monster.

This kind of knowledge surprised Angus since he thought that technology in this world is not advanced like on Earth in his past life. But, the more he learned the more he found that this world may be more advanced or same with postmodern Earth in his past life.

Since Angus himself is not an expert in his past life, he couldn't compare which is more advanced.

The only difference is the technology in this world is invented with the main purpose to sustain their life and their world rather than for the war purpose except the elimination of monsters.

Because of constant monster invasion, the last thing people want is barren land that could not become habitat for the living. So, there is little development in mass destruction weapons that also destroy the land itself.

The technology in this world also mainly used mana as power rather than electricity. Although they also invent electricity, compared to sustainable energy such as mana in the air, it is more greater and environment friendly.

'Haaa… What a complicated and troublesome world. Why don't I be reborn in a more peaceful world? Not that I get a chance to choose.'

'Come to think of it, it is already a miracle that I am getting a second chance like this. Especially born into a high noble family like this.' Thought Angus while closing the book the monster.

He put the books back to their respective self. Then, he searches for another interesting book that may give him more knowledge. As he took a book, he found another kid approaching him.

"Erm… Sorry, if you don't mind, could I borrow that book?" Said the kid