A Transmigrator's Story in the Hyuga's Main Branch - Chapter 24: The First Contact with ’Gen-Taijutsu’

They called him useless. A Class E farmer in a world where strength meant survival.Betrayed by the woman he loved, beaten by a power-hungry King, and left to die like trash, Isaac thought his story had ended.But death was only the beginning.Beneath the earth, sealed for thousands of years, a forgotten being awakens, an ancient force of ruin once feared by angels and demons alike. When Isaac agrees to its desperate offer, he doesn’t just survive… he becomes something else. Stronger. Colder. Hungrier.Now reborn with a forbidden power that rejects magic itself, Isaac walks the line between man and monster. Each time he unleashes the Abyssal Overdrive, his strength grows, but so does the Corruption threatening to devour what’s left of his soul.To protect the innocent, he must become the very thing they fear.To destroy the kings who shattered his life, he must embrace the darkness within.Enemies will fall. Secrets will unravel. And when the kingdom of Carreon learn that Isaac is still alive… it will already be too late.The world shunned him. Now, it will kneel.

I originally thought this was a world like an ordinary urban novel…Drawing comics by myself, traveling is pretty good.
But tell me, what happened to this magician called “Emiya Kiritsugu” who jumped on my face?
Who changed the settings?
Currently involved in the content of “F/Z”, “F/SN”, “Fantasy Carnival”, “The Emiya’s Meal”, “The Holy Grail of the Imperial Capital”, “FLA”, “Elmello II Event Book”, “FGO”, “FE”, etc.
Others related to “JOJO’s Bizarre Adventure”, “Rebellious Lelouch”, “Persona 5”, “Attack on Giant”, “Death”
“FGO”, “FE Series”, “FA”, “FSF”, “Cangyin”, “Magical Girl Illya” will be involved next…

- Description from novelbuddy

It is well known that while most Evil Skills can be mastered quickly, they are accompanied by immense side effects. A slight misstep and you could drive yourself insane or get yourself killed.But what if the side effects could be transferred to your enemies? How exhilarating would it be to cultivate Evil Skills then?In any case, Zou Feng, who transmigrated here, is already having the time of his life.The most evil, most venomous, and most morally corrupt Cultivation Skills? Bring them all on.This Poison Skill will make your entire body fester and become unrecognizable? Cultivate it!Cultivating this Skill will cause you to lose your sanity and become worse than a beast? Cultivate it!A Cultivation Skill that ensures you won't live for more than a year upon mastery? Cultivate it!