Martial King's Retired Life - Chapter 108Book 15:

Arthur, a Rich businessman was kidnapped and tortured for months by men his wife hired. After months of this hell, he was given a second chance, a new life in a different world and, of course, Arthur would rather start a new life than stay and continue to be tortured, so he accepted the deal that was proposed by a mysterious individual, but when he finally was reincarnated, Arthur discovered he was a..... parasite?

[Linguistics Skill: Lv0 (7/10)] [Apothecary Skill: Lv1 (15/100)] [Knight Breathing Skill: Lv2 (36/200)] [Knight Breathing Skill Experience Point +1] ------ In the year 3077 of the Berta calendar, during the era of confusion before wizards had reached the throne, he brought them ’Straight A Student Panel.’ He stepped into the sorcerer world, perfected sorcerer knowledge, like a bright moon dispelling the mists of the era. He was Ivan Marichardon, a pioneer of knowledge, he blazed trails for the way of the sorcerer.

The Red Dragon came from the vast wild wastes, coveting all the strength in the world. It once had countless titles: Mountain's Wrathful Flame, Infernal Calamity, Crimson Emperor, Ashen Dragon......The world trembled under the shadow of the giant dragons. He stirred up the craze of the magic industrial revolution; in the empire he established, Wyverns roared, artillery fired in unison, and steel beasts appeared in the sky and on the land, while disasters from another world rampaged everywhere.“Submit, or die.”Cassius spread his wings, blotting out the sun, and gazed down at the trembling humans, elves, and dwarves below, saying thus.......It is a story about a Red Dragon with a player template conquering, ruling, and transforming an alternate world.(Pseudo of DnD, The Fourth Calamity, Red Dragon)