What Makes So Yi-hyun‘s ’Cha Se-ri' Irresistible? A Deep Dive into 'Love Prescription'

Daniel Kim | 2026.03.26

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 KBS 2TV
 KBS 2TV
Actress So Yi-hyun is turning heads with a singular performance.

KBS 2TV weekend drama We Prescribe Love features So Yi-hyun as Cha Se-ri, the second wife of Yang Dong-ik (Kim Hyung-mook) and the household’s consummate supporter. From the opening episodes, she pairs elegant visuals and a bright smile with a candid, never-holds-back streak — a soft exterior with a steel core — leaving a vivid impression.

 KBS 2TV
 KBS 2TV
As the series progresses, Cha Se-ri’s appeal only deepens. She’s displayed fierce devotion and sincere care for the Yang family, who are not related to her by blood. She handles her prickly daughter Yang Eun-bin (Yoon Seo-ah) with composed coolness, genuinely hopes that wounded Yang Hyun-bin (Park Ki-woong) will find a meaningful connection, and even forgives her overly possessive husband — choices that add real emotional layers to the character.

So Yi-hyun’s strong acting underpins those moments. She turns Cha’s haughty reactions to the Gong family into something endearing through subtle smiles and vocal nuance. When she confesses to Han Sung-mi (Yoo Ho-jeong), "I was so envious when I looked at the doctor that I kept getting jealous, and I hated it," the admission adds a bittersweet authenticity. Critics note that she has taken potentially grating traits and, with her own touch, rendered Cha Se-ri irreplaceable and hard to dislike.

 KBS 2TV
 KBS 2TV
A recent episode raised the stakes by revealing a hidden secret. In a scene where Cha Se-ri quietly sobs over a baby photo taken from a convent, her tears sharply contrast with her usual brightness, prompting both sympathy and curiosity. When Eun-bin — who had pushed her away — calls her "Mom" for the first time and Cha Se-ri breaks down, the moment intensifies interest in her past and moved many viewers.

That curiosity deepened when Choi Min-seo (Park Ri-won), who possesses an identical framed photo, appeared, directing attention to a linked birth secret between the two women. Viewers are increasingly eager to learn Cha Se-ri’s true story and to see how the plot will unfold.

We Prescribe Love airs Saturdays and Sundays at 8 p.m.

Lee So-jeong, TenAsia reporter forusojung@tenasia.co.kr