I Became the Youngest Son of the Northern Duke’s Family

I woke up inside the game I used to love, in the body of the youngest son of the notorious Northern Duke’s family—the villains of the story. “Young Master, not that outfit again! It’s inappropriate!” “If a boy stays in the same room as a girl like this, it’s dangerous, you know?” “Your brother is already 10 years old, so why don’t you try this thing called a ‘corset’ that’s popular these days…?” …As a manly guy, the only way to live comfortably in this insane world is to become an adventurer and become independent.