Son Naeun Reveals New Side in 'Agent Kim Reactivated' with MZ Sensibility Alongside So Ji-sub
Actress Son Naeun transforms into a realistic MZ generation office worker in the SBS drama 'Agent Kim Reactivated,' starring alongside So Ji-sub.
Actress Son Naeun has showcased another transformation through the SBS Friday-Saturday drama 'Agent Kim Reactivated.' Moving beyond her existing sophisticated and urban image, she has established herself as a new pillar that refreshes the drama's atmosphere by completing a realistic MZ generation office worker character with her own unique color.

In the episodes of 'Agent Kim Reactivated' aired on June 26 and 27, Son Naeun appeared as Jung Sang-ah, an assistant manager at Sangsaeng Savings Bank. Jung Sang-ah is not merely a figure representing the younger generation, but a character with a sense of style that stands in stark contrast to Agent Kim (So Ji-sub), who remains stuck in old-fashioned ways of thinking. Through the sharp contrast between the so-called 'Ajusshi' and 'MZ,' she is a character who creates generational conflict and communication within the drama.
The interesting point is that Son Naeun did not consume Jung Sang-ah as a simple 'trendy young employee.' The essence of the character lies not in being someone who follows trends, but in being someone who understands the sensibilities of a changing era and presents new perspectives to others. Son Naeun did not miss this point, naturally incorporating MZ generation daily details such as phone cases and straps, dessert 'open runs,' and DM reservation culture.
These details serve as a device for character building beyond simple prop usage. How Jung Sang-ah uses objects and communicates shows the era and values in which she lives. Rather than performing an exaggerated 'modern kid' act, Son Naeun increased realism by approaching her as a person who could actually exist within a real workplace.
In particular, the scene where she chooses a birthday present for Agent Kim's daughter was the moment that best showcased the charm of the Jung Sang-ah character. To Agent Kim, who is struggling with his relationship with his daughter, Jung Sang-ah acts not just as an advisor, but as an interpreter connecting the generational gap. The scene where she recommends a luxury T-shirt as a "killer item to overcome puberty" and acts directly from the daughter's perspective, saying, "What has Dad ever done for me?", is both comedic and points out the gaps in the family relationship that Agent Kim had been missing.
This is also connected to an important axis of the work 'Agent Kim Reactivated.' While it appears to be a revenge action drama about a father who lost his daughter, at its core is 'the process of a father who could not understand his family rediscovering the meaning of family.' Jung Sang-ah is exactly that modern helper who assists Agent Kim in changing during that process.
The combination of So Ji-sub and Son Naeun also creates unexpected fun. The Agent Kim played by So Ji-sub is a man who has lived within the methods and responsibilities of the past. On the other hand, Jung Sang-ah symbolizes new culture and changed communication methods. Their clash may look like generational conflict, but it eventually develops into a relationship where they fill each other's deficiencies.
In particular, Son Naeun's acting shows a sense of balance, ensuring she does not become too light within the heavy revenge drama while still refreshing the atmosphere. While many recent revenge or action genres focus on intense stimulation and dark emotions, the appearance of a character like Jung Sang-ah serves to regulate the pacing of the work.
This work is highly likely to be a meaningful turning point for Son Naeun. Having expanded her acting spectrum across various genres beyond the prejudice of being an idol-turned-actress, she has naturally combined her strengths—a sophisticated image and bright energy—into the character through 'Agent Kim Reactivated.'
Above all, Jung Sang-ah is not just a simple 'representative MZ character.' She is a figure who connects the past and the present and plays a role in helping one regain human emotions amidst a cold reality. Within that, Son Naeun created a liveliness that is not merely superficial.
Ultimately, the interesting point of 'Agent Kim Reactivated' is not just the revenge of a legendary agent. It also lies in the process where a father searching for his daughter, changing generations, and people with different values meet and restore their relationships. Son Naeun's Jung Sang-ah is adding a new temperature to the work at the very center of that change.
The contrast created by So Ji-sub's heavy action and Son Naeun's light, realistic sense is expected to be another watching point of 'Agent Kim Reactivated,' as it expands into narrative power.
