Which actress that was a member of South Korean girl group is co-staring in Unexpected Love?
Unexpected Love (2017 film):  Ai Ba" / "Biyeon") is an upcoming Chinese-South Korean romantic comedy film directed by Si-Heup Seong and starring Zhang Yixing and Krystal Jung. Krystal Jung:  She debuted in 2009 as a member of South Korean girl group f(x) and has further participated in S.M. Entertainment's project group S.M.
i don't know