Love Call (Movie - 2011)

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Synopsis
Han-na, a phone counselor, is the type who can't tell a lie and can't help but speak her mind. One day she gets a phone call from a high school student and is convinced she needs to visit the student's school counselling room, where she meets a nosy teacher named Min-woo. As their relationship progresses, Min-woo tries to crack the cynical Han-na, interfering in all aspects of her life.