Who Are You and Who Am I?

Once 23 year old Choi Mi-Ok was your 'average' adult living a normal life with her family consisting of her mother,father and twin brother Choi Minho. Her peaceful life continued until a sudden event erased her memories and its now been two years since then but her parents refuse to talk about it. All now 25 year old Mi-Ok knows is that because of that event from two years ago her family prevents her from listening to or watching anything Korean, but just what happened those 2 years ago and what was her life like before she forgot everything from her late teen years until her early 20's?
(Since its my first time writing a story, the chapters are quite short and updated slowly)