Love complicated square drama

- One and Only(Here though all characters have only one person they love/like but the marriage/politics play makes whole thing such a mess.) - Initially FL was engaged to 2ml(he was already obsessed with FL  just from her portrait, it would have been better if 2ml fell for the painter of portrait lol), then engagement was canceled and then FL's brother was engaged to the girl who likes 2ml, sometime after FL was again engaged to 2ml.

Try moon lovers: scarlet heart ryeo. It was so complicated. (But not exactly sweet romance)

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These are some of my fav, love sqaurish dramas : Her private life, Reply 1988