i don't know why this plot reminds me of DEVIL BESIDE YOU ^^ -i looooooved that drama- anyway i'm really…
They are extremely similar now that you mention it. The leads live together, the male lead are both devilish, and they start off by hating each other and eventually (although at different speeds) fall in love with each other. Much less of the "forbidden" love aspect in devil beside you in this show though
From when she was young, Qing Ling grew up in an orphanage. She is a kind, cheerful and helpful girl with a perfect sense of smell. Due to her sensitivity to smells, she started to develop perfume. Qing Ling's dream is to create perfume to pay back the orphanage and help society. In order to realize this dream, Qing Ling persevered through all sorts of adversity. While chasing her dream, she received Xu Qinglun, Duan Tianlang, Duan Yihua and others help. With Duan Tianlang, they went from friends to lovers. During this period, she also found her family and reconnected with them. After experiencing lots of frustration, she finally, with her own effort and everyone's help, produced her own perfume brand, realized her dream and obtained love.
https://www.youtube.com/watch?v=BKFPcSAjQ4I
Source: http://baike.baidu.com/item/%E7%88%B1%EF%BC%8C%E6%9D%A5%E7%9A%84%E5%88%9A%E5%A5%BD/20404569?fromtitle=%E7%88%B1%E6%9D%A5%E7%9A%84%E5%88%9A%E5%A5%BD&fromid=19615712&type=syn