u/Few-Collection-8163

Hello,sorry if my english is bad,I remember reading this one manwha/manhua in 2014-2017,it was romance manwha/manhua,all that I remember is that the ML and FL live together because the ML father asks them,the ML found out that the FL love to online shopping and the FL used the allowance that was given to them by ML father to online shopping,all I can remember is that the FL wears a choker and wears purple dress or have purple hair,I been searching for it for months but still didn't found it,if anyone knows please help me