*This content was translated by AI.

TWICE member Jeong-yeon opens up about her true feelings for her older sister, actress Gong Seung-yeon.
The final episode of tvN's variety show "You Quiz on the Block" (hereinafter "You Quiz"), which aired on the 6th, featured a preview of Gong Seung-yeon's appearance.
Gong Seung-yeon recently took on the role of Princess Yoon I-rang in the MBC drama "21st Century Grand Duchess," which is currently airing, and has entered her prime alongside the drama's rising popularity. The drama has surpassed a peak viewership rating of 11.2%.
In response, Jeong-yeon, Gong Seung-yeon's younger sister, appeared in an interview regarding her sister's prime. Jeong-yeon smiled, saying, "It's so good that my sister is doing well these days."

However, Jeong-yeon said, "It was a mentally difficult period for me," and added, "I get choked up," showing tears and raising curiosity.
Jeong-yeon previously took steroids to treat cervical disc issues in 2020, which led to a rapid weight gain due to Cushing's syndrome. She also ceased activities while reporting panic disorder and anxiety disorder.
Since then, Jeong-yeon has shown significant recovery in her health through continuous treatment and exercise.
<© STARNEWS. All rights reserved. No reproduction or redistribution allowed.>
*This content was translated by AI.



!["I think I need to prepare" — a bolt from the blue... Yoo Yeol, on the brink of life and death during his battle with pulmonary fibrosis [You Quiz on the Block]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=567,h=378,fit=cover,g=face/21/2026/05/2026050707382712040_1.jpg)
!['Allegations of School Violence' Target Former Girlfriend of Koo Dong-ho: Woman Says, "I Became an Accused Overnight; We Never Dated" [Star Issue]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=567,h=378,fit=cover,g=face/21/2026/05/2026050616475049525_1.jpg)

![IU♥Byun Woo-seok, from business partners to real-life couple... How has their 'sweet gaze' changed? [21st Century Grand Duchess]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=271,h=188,fit=cover,g=face/21/2026/05/2026050709514938238_1.jpg)
![Spokesperson Yeong-suk? "They don't fit together": 31st Group Ok-soon, the vanguard of 'Sun-ja gossip' [Star Issue]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=271,h=188,fit=cover,g=face/21/2026/05/2026050709400370953_1.jpg)




