Sweet & Sour — Characters & Cast

To secure a permanent corporate position in Seoul while attempting to maintain romantic options without emotional expenditure.

Transitions from an ostensibly affectionate partner into an emotionally negligent, irritable workaholic who rationalizes his deceit, only facing bitter regret when it is too late.

To seek genuine companionship, emotional stability, and reciprocal care amidst exhausting life pressures.

Evolves from a self-sacrificing, nurturing nurse who suppresses her loneliness into an independent woman who quietly recognizes when a bond has soured beyond repair.

To survive corporate exploitation, stand out among contractors, and find informal comfort during isolating overtime hours.

Begins as an aloof, fierce competitor in the architectural firm but softens into a pragmatic confidante and mutual escapist companion for Jang-hyuk.

To win Da-eun's affection and offer her the attentive adoration she craves.

Begins as a hospitalized hepatitis patient deeply touched by compassionate bedside care who earnestly devotes himself to becoming a worthy partner.