Sehee, weary of emotionally demanding relationships, seeks only physical intimacy. Two men make their approach to her. "Sunbae, do you genuinely want to date me? Isn’t it okay if we just keep things casual?" Yugeon, a disheveled junior who feigns innocence while plotting. "She’s not my girlfriend, but I do have a regular sex partner." Gabin, a senior who brought up another partner as soon as they were in bed together. The apathetic Sehee preferred her exhausted sexual partners. However, those who initially approached her with a carefree attitude soon began to desire exclusivity...