Ha Ji-won Reveals Extreme Weight Loss and Bold Transformation for Climax

Actress Ha Ji Won has detailed the rigorous physical transformation she underwent for her role in the ENA drama Climax, marking her return to television after a four-year hiatus.

During an interview conducted on April 6, 2026, in Sangam, Seoul, Ha Ji Won revealed that she reduced her weight from approximately 50 kilograms to 45 kilograms to portray the character of Chu Sang Ah.

Methodology of Physical Transformation

The actress explained that the director envisioned Chu Sang Ah as a sensitive character who remained well-maintained as an actress while appearing extremely slim. To achieve this specific look, Ha Ji Won focused on reducing her muscle mass rather than pursuing general weight loss.

Because she naturally builds muscle easily, Ha Ji Won intentionally avoided walking extensively and replaced traditional exercise with heavy stretching. She stated that this approach was necessary to create a slimmer silhouette, as working out would have caused her to gain muscle quickly.

The transformation was also driven by costume requirements. Ha Ji Won noted that many of the character’s outfits consisted of slip-style dresses, and she wanted these garments to appear slightly loose on her frame.

Addressing potential health concerns regarding the weight loss, the actress clarified that her focus was on slimming down muscle. She mentioned that she has since begun running again to return to her normal routine.

Character Immersion and Role Dynamics

In Climax, Ha Ji Won portrays Chu Sang Ah, a former top star actress who has fallen from grace. The character is described as complex and ambitious, consumed by desire.

Ha Ji Won described the intensity of her immersion into the role, noting that there were times during filming when she was so absorbed in the character of Chu Sang Ah that she was unable to eat.

The production has drawn attention for its bold content, including provocative storylines and a same-sex kiss scene between Ha Ji Won and actress Nana. Ha Ji Won commented that the two actresses had strong chemistry, making the scene feel comfortable.

The drama also features prosecutor Bang Tae Seob, played by Ju Ji Hoon, who enters a powerful cartel in his pursuit of the top. Ha Ji Won noted that she and Ju Ji Hoon shared great chemistry, allowing them to film intense scenes, such as fierce marital arguments, in a single take.

Career Context and Recent Appearances

Prior to the current promotional cycle, Ha Ji Won appeared on Sung Si-kyung’s YouTube channel in a video released on March 18, 2026. During that conversation, the 47-year-old actress discussed her body management routine and her passion for the project.

She shared that her approach to fitness involves understanding how muscles work and applying strength to specific points that require stimulation. She attributed her efficiency in exercising to years of consistent training.

The transformation for Climax represents a significant shift in image for the actress in her 30th year of professional activity. The series continues to air on ENA, with Episode 7 scheduled for April 6, 2026, at 10 PM KST.