Characters;

(16) Kim Hwee Kang: The son of a musician and also was the vocalist of "Repellant". Kim Hwee Kang is known as the cool, arrogant, and mean person but it turned out to be a very soft, caring, and friendly type of person inside. When he first auditioned for the JBL entertainment, he was rejected before he was able to finish the song due to the band's horrible playing, but he was later accepted to the entertainment due to his true rocker voice. He faced a lot of problems while trying to fit in his new lifestyle and kept on trying to solve it. He is the Maknae of the group.

(17) Kang Jioh : Just like Hwee Kang, jioh is an aspiring rock singer. Jioh has been a trainee for three years and hasn't debut yet, which makes him insecure. With his insecurity, he often threatens people that he would leave the company but everyone knows he wouldn't. Jioh appears to be very close with Shin Woo and Bum Suk. As HweeKang and Tae Jo arrive to JBL as trainees, he immediately takes a disliking to HweeKang since they're rivals. Though he does get along quite well with Tae Jo and even puts in the most effort to communicate in Japanese with him. One of Jioh's pet peeves is when someone talks about how he hasn't debut yet, especially when Harang throws it in his face.

Ever since Jioh was a little boy, he was notorious for his good looks. His neighbors and parents would shower him in compliments, often telling him he was the most handsome boy in the world. Eventually, Jioh's good looks gained him a job as model for a famous fashion designer. Soon after that, he gained many request. Before Jioh went to JBL as a trainee, he already starred in various commercials, dramas, and two movies. One day, Jioh got sick of being a star. Making a huge fuss with his parents and agent to get him out of filming and schedules. Not too long after that, Jioh followed one of his friends to a NOBO-D concert. That was when Jioh saw JJ, the singer for the band, and was inspired to become a singer himself. After eight auditions, Jioh was admitted to JBL. With high confidence in not only his looks but potential talent, it was shattered when he figured out that there were seven other boys just like him. Jioh worked his butt off as a trainee and eventually became the only one left after three years.

(16) Moon TaeJo: The son of Moon Hwee Tae who was a well known guitarist. Just like his father, TaeJo played the guitar and was considered a prodigy. At a young age, his family moved to Japan to help his father pursue a better career. After moving to Japan, TaeJo eventually gave up playing the guitar and became more rebellious. Instead of going to school he would get into fights, play at the arcade, steal, and spent his time around friends who weren't the best influence for him. Jaebum wanted to recruit him for JBL, so much that he flew all the way to Japan for him. If it wasn't for Jaebum, Taejo wouldn't of picked up the guitar again. In current chapters, Taejo is revealed to be the same age as Hwee Kang Kim (16) and both boys join JBL at the same time as trainees. They also attend the same reason why Taejo quit playing the guitar was because his father had left his family. Even before his family broke apart, it is some what hinted that his father was abusive, completely obsessed with music and disregarded his family.

(17) Baek ShinWoo: A JBL trainee for 6 years. Multitalented, Shinwwo plays guitar, bass, drums, and even sings and produce; however, he is content with and prefers playing bass. Considered JBL's secret weapon by the CEO, Lee Jae Bum, ShinWoo's albino looks are enough to make the audience awe in split second. ShinWoo is quiet yet caring by nature, and cares about Kang Gio a lots. Not so long ago, Shinwoo confide to TaeJo about his past; his mother abandoned him when he was young since she didn't want to deal with an albino child.

(19) Seo BumSuk: Bumsuk is a 19 year old drummer who has been at JBL as a trainee for 5 years. He once left for 2 years for his college but then return to the entertainment as a trainee again. He is also a math genius and along with drumming his other hobby is studying math.

Addition Characters:
(17) Harang: A female Solo artist who debuted only an year after she joined JBL. She is hinted to have been an insecure girl with her looks during her trainee time since she had done a few plastic surgeries; She seem to have a dislike (?) toward Jioh; it seems like she takes Jioh's comment very personality.

Lee Jae Bum: JBL Entertainment's CEO and a very famous rockstar in Korea.

Cheif Park (Male) & Cheif Sung (Female): In charge of casting and Auditions.

Bishuz: Famous Indie Musician who was working in the US but is now HweeKang's and Harang's Vocal Coach.

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