He’s not an easy one to beat.
2 hours ago
Content Warning
This article includes descriptions of dieting, body image issues, or eating disorders that may trigger some readers.
BLACKPINK’s Jisoo recently revealed the unexpected person who motivated her to stay disciplined during filming.
While promoting the drama Boyfriend On Demand, Jisoo shared that her co-star Seo In Guk unintentionally became her “dieting rival.” According to Jisoo, the two actors ended up motivating each other throughout the shoot without even trying.
She explained that whenever Seo In Guk noticeably lost weight during filming, it pushed her to work harder on managing her own diet. But the dynamic also worked the other way around. When she noticed Seo In Guk gaining a little weight, she would feel relieved.
아니 서인국이랑 지수가 왜 다이어트 라이벌임 대체ㅠ
한명 살 빠지면 위기의식 느낀다는 게 개웃기네 pic.twitter.com/q6E1NFSJWN
— ٕ (@zhezxe) March 5, 2026
Jisoo: “He’s starving recently. He said that his goal was to lose 4kg (8.8 lbs), and just now, he told me that he’s left with 3kg (6.6 lbs). He already lost 1kg (2.2 lbs). He’s my rival. I have to lose weight too. I thought to myself, ‘he already lost 1kg? He’s not an easy one to beat.’”
Seo In Guk: “As we filmed Boyfriend On Demand, when I gained some weight, Jisoo felt more comfortable, but when I lose weight, she feels threatened.”
Jisoo: “Yeah, I get anxious.”
As the camera often adds ten pounds, it’s no wonder that both of them are motivated to lose weight! Watch the trailer for the show below.
BLACKPINK