I Am an Idol, Why Do I Have All the Skills from the Underworld?

Ye Fei traveled to a parallel world similar to Blue Star, became an idol trainee, and was participating in a men's team talent show. He only relies on his face to make a living without any talents or skills. At the critical moment, he awakens a system. As long as he continues to accumulate popularity, he can obtain various skill rewards. But, I am an idol, why are these rewards just some underworld skills? Host: "What instrument are you good at?" Others: "Piano, violin, guitar..." Ye Fei: "Chime!" Host: "What kind of dance are you good at?" Others: "Hip-hop dance, jazz dance, Latin dance..." Ye Fei: "Does dancing as a master count?" Host: "What life skills are you good at?" Others: "Good at cooking, painting..." Ye Fei: "I dissect a corpse in eight minutes!" Host: "What are your hobbies?" Others: "Flower arrangement, photography..." Ye Fei: "Robbing tombs and driving away corpses!" … Is this guy really here to be an idol? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.