Childhood friends Nam Do-yeon and Jeong A-rin have been dating for over a year, but their highly rational relationship completely lacks the excitement of young romance. Realizing they are missing that "heart-fluttering" spark, they decide to launch a deliberate plan to reclaim it. They initiate the "Heart-Pounding Operation," intentionally setting up cute, fluffy, and intimate situations to force each other out of their logical comfort zones and finally make their hearts race.

Read Operation: Heartbeat manhwa in English, updated regularly. Also known as: Operation Heart-Pounding · The Heart-Pounding Operation