What's Behind that Mask? /Cha Eunwoo ff/

There Once Lived a Girl named Hwang Y/N . She was the sister of a famous Singer. Which she obviously didn't knew. Her Brother got Lost once on A Airport when he was 14. At that Time,Y/N was Just 10 years Old. Then He couldn't find His parents,a family took him in. They Treated Him nicely. Soon He Became a Singer. Y/N had always been a Happy and Cheerful Girl ever since she was little. But one day,After Spending time with her Best friend Lisa,she returned home and got very terrified and shocked. Two Men were pointing their Guns on her mom and dad. Ever since that day,Y/N Left Korea and went To live in California so that the killers of her mom and dad would not find her. She did not even speak about it to Lisa and left immediately. After a few Years,She came back to Korea. She was in high School. She started wearing mask, and Pretended as if she could not speak. Some girls started bullying her. because She was ''Attracting Attention" of the School's Heart throb Cha Eunwoo. Y/N was also a Rich CEO at a young age. since her parents passed away,she got all the property. What would happen if Lisa finds out about Y/N returning? what's going to happen if Y/N finds Her Long lost Brother? Would Eunwoo and Y/N get along?