This is really not mechanical ascension - Chapter 48 - Regard with Special Respect The Special Action Team

Trapped in a monastery of breathtaking nuns, Charles recognizes them from Witch Monastery—they’re monsters in saintly disguises, hungry for his flesh.

More than ten years later, this sentence gradually spread in Elbaf Continent:

Never use magic to deal with tyrants, because you will find that he will return your spells to you thousands of times after being strengthened by countless magic specialties.

This is the story of a dragon-shaped self-propelled fort that keeps doing things in another world.

There is nothing that one magic can’t fix. If there is, then there are more. ——Izawa

- Description from novelbuddy

Two Worlds, One Wizard, Infinite Wonders.Carl has the ability of freely traveling between two different worlds. What did he do with this power?Breathing techniques? Mastered.Legendary weapons? Claimed.Mysterious beauties? Well… let’s just say they noticed.Armed with a sharp mind and powerful witchcraft, Carl begins his rise from nobody to legend in not one but two worlds. When the rules don’t apply, why not rewrite them?

Magic finally reached planet earth, but it was not like we expected. It came in the form of mystic energy!

After the age of awakening, all living things finally entered the path of evolution.

Mystic Beasts invaded earth, destroying the world as we knew it, but we survived as we finally gained the ability to utilize the energy that the beasts came with.

Mystic Warriors were born, and humanity finally found a moment of reprieve, but the Mystic Beasts were still winning.

Rex Vector, an apparently mystic energy-deficient sword genius who lost everything to the war turned out to be the last inheritor of an Ancient Bloodline.

On fully awakening his bloodline he was granted a system and his whole life changed for the better.

Life held much more in store for him though as the contents of his first system mission revealed a reality to him that he wasn’t sure he wanted to accept.

[You are hungry!]

[You must drink human blood within 24 hours!]

[Penalty for mission failure: Death!]