Sungho's life in Seoul during the 1980s lacks excitement, thanks to his demanding father who expects him to devote all his time to studying. Struggling to cope with his father's expectations, Sungho spends most of his days buried in books, oblivious to the city's thrilling new developments. However, one thing continually shatters his concentration: debilitating migraines that refuse to subside no matter how many medications he takes. After an intense headache, Sungho impulsively kisses a stranger, horrified at his actions and desperate to forget the incident. Yet, what if this spontaneous gesture is the only way to alleviate his painful migraines?