talent in music. His life was ruined after his best friend, Lee Ji-young, accused him for sexually abusing her. With the record he had, he has faced rejection, hatred and was bullied at school. It also made it harder for him to become a musician, because there will be negative attitude from people towards him, his band-mates, Geu-rin, and Suk-ho. Shin Suk-ho decides to help him by looking for the real abuser in order to clear Ha-neul's name. Chae Jung-an as Yeo Min-joo Min-joo is Suk-ho's loyal work-mate and friend for 10 years. She always helps him in hardships. She is working in 'Ocean Music'. She seems to have an interest in Suk-ho but he never sees her that way. The truth is that she is the youngest daughter of a rich family which runs a big company, but she wants to keep her identity as a secret. After quitting 'Ocean Music', she becomes the director of 'Mango Entertainment' (Suk-ho's company) while Suk-ho is the CEO. Supporting KTOP Jeon No-min as Lee Joon-suk He is the CEO of one of Korea's biggest entertainment company, KTOP Entertainment. His outward appearance seems to be very kind, but he is very obsessed with his work. He would do anything to make Suk-ho go through hardships and bring down his entertainment company. He had a connection with the reason for Jo Ha-neul's brother death, because of that he becomes more motivated to bring down 'Ddanddara Band'. Heo Joon-suk as Kim Joo-han Kim Joo-han used to be Suk-ho's assistant at KTOP Entertainment. Before Suk-ho departures from the company, the CEO of KTOP ordered him to backstab Suk-ho and betray him in exchange for the position as the new director. Kim Joo-han seems to have had a connection with Lee Ji-young's abuse case. Yoon Seo as Lee Ji-young Lee Ji-Young is a girl from Busan and used to be Jo Ha-Neul best friend. Her dream was always to be in a girl group . She is also a big fan of popular boyband 'Jackson', she threatened Kim Joo-han to make her become a KTOP trainee and if not she will tell the media that the one who sexually abused her was actually Ji-nu from boyband 'Jackson' and not Jo Ha-Neul. Before her dream came true in KTOP, she was rejected multiple times and failed on many auditions. Because of her special way, she immediately got into