The One They Loved (The Penthouse x reader)
(Y/N) is the younger sister of Bae Ro-Na, both (Y/N) and Ro-Na were close and did pretty much everything together so when Ro-Na was going to high school (Y/N) wanted to go as well, (Y/N) was a very smart young girl so she was able to skip a year and get into Cheong-ah Arts School placing 2nd in the classical singing r...