'The Second Child' Park So-yi Reveals She Personally Ticketed for a PLAVE Concert, While Yuna Confesses Her Love for BOYNEXTDOOR

By  Kang Sun-ae  | Jun 23, 2026

'The Second Child' Park So-yi Reveals She Personally Ticketed for a PLAVE Concert, While Yuna Confesses Her Love for BOYNEXTDOOR
Young Street (Photo=Getty Images Korea)Actresses Park So-yi and Yuna, the stars of the upcoming mystery film The Second Child, recently appeared on a radio show to share heartwarming behind-the-scenes stories about working with veteran actress Im Soo-jung, as well as their relatable teenage interests.

On June 22, Park So-yi and Yuna appeared as guests on SBS Power FM's (107.7MHz) WENDY's Young Street, ahead of the theatrical release of The Second Child on July 1.

The Second Child tells the story of Su-an, who miraculously wakes up from a three-year coma only to find her mother, Geum-ok, completely changed. After meeting Jae-in, a mysterious girl who looks exactly like her late older sister Su-ryeon, Su-an becomes entangled in the secrets of a "Shadow Fairy Tale."

During the broadcast, Park So-yi and Yuna drew attention by sharing heartwarming stories about working with Im Soo-jung. In addition to starring in the film, Im Soo-jung also participated as a producer. When host WENDY asked if they had any special nicknames for Im Soo-jung on set, the two young actresses revealed that they naturally called her "Soo-jung Mom" or "Soo-jung Mommy," fully immersing themselves in their roles.

They also praised Im Soo-jung for her immense guidance on set. Both actresses expressed their heartfelt gratitude, sharing that Im Soo-jung generously passed down her know-how on how to deliver more instinctive performances without getting trapped in technicalities. They added that she constantly took care of them throughout the filming, leaving them with many unforgettable, grateful moments.

When host WENDY playfully asked, "Then what should you call me?" Park So-yi and Yuna answered "Unnie" (older sister) without a moment's hesitation, bringing laughter to the studio.

The two rising teen stars also showed off their delightful teenage charms by revealing their favorite K-pop idols.

Park So-yi confessed, "PLAVE is my absolute favorite," naming YEJUN as her bias. She surprised listeners by proving her status as a true fan, sharing, "I actually succeeded in ticketing myself and went to their concert." Yuna then shyly confessed her love for BOYNEXTDOOR, naming JAEHYUN and WOONHAK as her favorite members.

Meanwhile, WENDY's Young Street airs daily from 8:00 PM to 10:00 PM KST on SBS Power FM (107.7MHz) and can also be viewed as a video radio show on SBS's official YouTube channel.

(SBS Entertainment News | Kang Sun-ae)