Deep Throat

Han Ga-Ram was the youngest lead vocalist of the popular idol group Faiz. After serving in the army, he applies for an audition program to become a singer again. After receiving confirmation he can participate in the audition, Ga-Ram meets his middle school friend Kang Su-Won, who is now the general manager of the CN group.

"We were friends with each other and cared about one another a lot, but the friendship ended badly. He offered me a deal that I couldn't resist."

(Source: Ridibooks, translated)