The story follows Oh Jin (played by Shin Ye-eun), a middle-school nurse who has been in a relationship with Cha Min-jae (played by Kang Tae-oh) for three years. The "inciting incident" is exactly what the title suggests: during a casual game, Min-jae hits Jin on the forehead with a finger flick.
KBS Drama Special: The Effect of a Finger Flick on a Breakup The story follows Oh Jin (played by Shin