A shut-in is reborn in a parallel world with a super System. He starts out as a streamer and becomes a superstar streamer.
He makes his way through the entertainment industry and becomes its biggest star. They all call him a genius of the industry.
The protagonist looks down on the world with an invincible air, making everyone else pale in comparison.
He's a grandmaster pianist, a grandmaster musician, and a grandmaster of Chinese martial arts. Perhaps he's even a martial arts hero. Everyone thinks he's a genius who can do everything, but only he knows the truth: he's no genius at all. It's all thanks to the System.
This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.
