Park Kang Sub

Han Geum Ju, who considered herself a perfectly sensible drinker, is diagnosed with alcohol dependency and finally decides to get sober. In her decision to become sober, she meets Seo Ui Jun, her kind high school best friend who became heartless. Ui Jun is unsympathetic towards Geum Ju's alcohol dependency, which triggers her to figure out what happened to him. (Source: CJ ENM)