Taming the Entertainment Industry, Starting by Becoming a Composer

【Entertainment + Cool Writing + All-round + Time Travel】 His songs are running rampant on the charts! His movies have broken box office records time and time again! His TV series have repeatedly broken his own ratings records. Every time everyone thought he had reached his limit, he always disappointed them. Don't speculate when his inspiration will run out, because that's impossible! Who is he? He is the almighty god in the entertainment industry!