Seungkwan's sister (Kpop ff) [Completed]

Y/n is a 14 year old girl who found out that her brother is Boo Seungkwan from Seventeen (3 years ago when she was 14 was when she meet Seungkwan), y/n has some ups and downs from beginning Seungkwan's sister. Little did she know that she will be come an idol too.