I was reincarnated into a game I used to play. As the youngest son of the Northern Grand Duke's family, who appeared as villains in the game. "Young master, dressed like that again! How vulgar!" "Don't you know it's dangerous for a boy to be alone in a room with a girl?" "Since your sister is now 10 years old, this 'corset' that's been trending lately..." ...As a real man, the only way for me to live comfortably in this insane world is to become an adventurer and gain independence.