Park KyungMin is the half sister of the Son Dongwoon of B2ST. KyungMin's parents are always overseas for business trips so she lives by herself. her brother and his group would come visit come her every week end without questions but during their japanese concert tour he was unable to come so he told his friend and his group to check on her for him...And it was no other then SHINee ...What would happened with the relationships between you and SHINee get closer just after a month...What will you're brother say, and what will he do??  What if there is a spark,  well the feelings be mutual, or will one side like someone else like another idol... Will DongWoon be able to protect his little sister from getting hurt and heartbroken??