choi jisu/lia - daughter of the owner of musical industries school . acts ruthless doesn't like new people bullies of : basiclly everyone but her friends hwang yeji - new student to musical industries first time ever in seoul korea acts nice kind hates mean people this is a story about jisu and yeji not getting along until they have a duet and end up knowing eachother everyone gets confused since they thought they hate each other do they? blackpink twice bts itzy are not formed yet they are in the school but arent a K-pop group yet