Characters:

Kim Sohyun(You)

-Love to sing since you were a kid.

-Cheerful and friendly

-Not afraid to stand up for friends

-Loyal and hardworking

-Hates two-faced people and dishonest people

-If anyone offended her, or her friends, she would rather tell the person upfront rather than gossip behind their backs. 

Bang Yongguk

-Hates bullies the most, he feels that everyone should be treated equally and no one should be ostracised. 

-He stands up for what is right and helps anyone who needs help.

-Due to his kind nature, he was popular in his schooling days.

-He was very smart and hardworking.

Other Characters:

B.A.P

Secret

There might be other characters coming out as well. 

All the pictures I used are not mine, credit to the owners. 

The poster is created by me and the story too. Any similarity to any other stories are purely coincidence.