kim myungsoo is a university student majoring in singer . He is also the vocalist and face of the group named 'INFINITE' . All infinite members called kim myungsoo with short named 'L' . L is known for his good looks , cocky personality , and strong passion for music . As s 'INFINITE' are fans of 'APINK' but they keep it secretly .  Everyone sees him as a cold - hearted person , but L 's actually soft inside . L lacks interest in anything unrelated to music and has neither dreams nor plans for the future . L initially likes BAE SUZY, a vocalist student at the same university with L , but this all changes when L meets SON NAEUN .

son naeun is a cute and outgoing student who was born into a rich family and is majoring in dancer , her love to dance . She is also the Vocalist , Lead Dancer and Face of the group named 'APINK' . She is the daughter who can do y dance . Son naeun's grandfather , LEE DONG GUN is one of the top 3 male singer but of his age and his biggest wish is to see his granddaughter become a famous dancer  . He want his granddaughter dance on the stage while he going to sing . Trying to live up to her grandfather's expectations , son naeun immerse herself in practising and becomes a university student who knows nothing much outside of her studies . As her members 'APINK' are fans of 'INFINITE' but they keep it secretly , she was forced to go to the band's concert with them . There she saw 'KIM MYUNGSOO' performing live , and is immediately captivated by him . 

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