Mad_Quill
The youngest son of a count was supposed to be weak, disposable, and easy to erase during a succession war.
Too bad his body got hijacked by Sung Tae-sik - a debt collector who solved problems with fists, threats, and a gun pressed where words failed.
Now reborn as Vincenzo Dante in the Mordino Empire, he wakes up in a rotten noble family tied to the underworld, surrounded by smiling knives, fake loyalty, and people who already want him dead.
His body is weak, his position is trash, and everyone thinks he's harmless.
That's fine.
Gangsters don't need magic to survive. They need instincts, patience, and the willingness to get their hands dirty. And when training starts, when blood spills, when debts come due - this world will learn one thing.
Even nobles kneel when the wrong man gets pissed.