Kim Hye-soo Anchors Coupang Play's "The Affair Was Just the Beginning" With Layered Turn

Kim Hye-soo is holding the center of the Coupang Play series "The Affair Was Just the Beginning" with a smart, detail-driven performance. As Park Kyung-hee, a woman caught between family and success as her life begins to crack, she plays the character's confusion with a grounded realism that keeps viewers locked in.

The black comedy, built around Kim Hye-soo's lead turn, has drawn a strong response for its unpredictable twists. As the polished surface of Kyung-hee's life falls away, her real face slowly comes into view, and attention on the character has grown. Even when the story pushes past infidelity into something bigger, Kim Hye-soo steadies each scene with a controlled performance, showing a woman fighting to protect the life she built.

Kyung-hee first caught the eye through glamorous styling, but Kim Hye-soo gradually peels that back. Underneath the polish is someone more desperate than anyone to hold her life together. Faced with the sudden discovery of her husband Im Jae-hong's secret, played by Kim Ji-hoon, and her daughter's lies, the character wavers helplessly, and Kim Hye-soo moves through that wide emotional range with the ease of years of experience.

She lets Kyung-hee shift from moment to moment. In one scene the character is stronger than anyone. In the next she is small and fragile. When Jae-hong tries to apologize, Kyung-hee slaps him hard across the face without hesitation, all resolve. Later, alone in her room, she replays the wound and quietly breaks down in tears. The same character carries two very different textures, and Kim Hye-soo moves between them without a seam.

Small choices carry the work. An eyebrow twitching without warning loads a scene with tension. Hands hovering in the air catch the mix of shock and disbelief on Kyung-hee's face. Kim Hye-soo also ties Kyung-hee's signature glamour, her "weapon," directly to the character's emotions. Eyes swollen from crying all night are hidden behind oversized sunglasses. A bright red dress goes on under a leather jacket. In the middle of pain, Kyung-hee reaches for a louder shell, and the hurt reads more clearly because of it.

Lines like "You promise to love someone your whole life, promise to stay by their side until your black hair turns white, and you can still stab them in the back. That's what love is," and "My husband, my kid, what is it, did the women across the street put a spell on them," land in Kim Hye-soo's bouncy, self-mocking rhythm and cut the heavier scenes down to size. That sharp delivery, paired with her easy comic timing, deepens the show's black-comedy tone.

Around the central performance, "The Affair Was Just the Beginning" keeps widening its scope, following Kyung-hee's family as the trouble spreads and shakes them one by one. A quiet life is starting to crack, and the question of how far that chaos will grow, and which way Kyung-hee will turn between family and success, is where the show's pull now sits.

"The Affair Was Just the Beginning" has held the No. 1 spot on Coupang Play's most-watched chart for three straight weeks. Episode 6 arrives Friday, August 21, at 8 p.m. KST.