Go Eunwoo, aged 25, dedicated to her fitness regimen in preparation for a beach trip with friends, found herself assigned a new trainer when her usual one was unavailable. Nam Taehee, who is 23, stepped in and immediately developed a crush on Eunwoo, yet he found it difficult to convey his emotions. Following an impromptu dinner invite, they experienced a memorable and exhilarating evening together. Now, both are left contemplating the aftermath, uncertain whether their bond will strengthen or fade following their passionate encounter.