I watched this show because of Wang Xing Yue. I absolutely loved him in The Double, which I think is his best role to date. In First Love, his portrayal of a stoic, logical genius who finds himself falling in love was great. Because he's so aloof and expressionless most of the time, when he first smiles -- just barely a twitch of his lips -- it has a big impact. I found the FL quite annoying at first, but she seemed to grow up a lot by the end of the series.