Lee Suhyun revealed her past experience of going through a slump.

In a pre-release video of the tvN variety show "You Quiz on the Block," Lee Suhyun mentioned that she went through a difficult period without seeing sunlight for a long time. She explained that she stayed in her room, spent her days playing games and ordering delivery food, and lived without distinguishing between day and night by keeping the curtains closed. Lee Suhyun said that she repeatedly binge ate every day during that time, causing her weight to increase rapidly, and she had no hope for a better future.

Lee Chanhyuk shared that the whole family felt Lee Suhyun's struggles, but she herself was unaware of it. He expressed his worry that something irreversible might happen when his sister was in a difficult situation. Lee Chanhyuk revealed that he could not give up on Lee Suhyun.

Recently, Lee Suhyun has been living in the same house as Lee Chanhyuk. She said that her brother frequently knocks on her door to check whether she has exercised and to look at photos of her meals, showing constant concern. She also smiled at her brother's frequent questions.

Meanwhile, Lee Suhyun gained attention for her successful diet. When suspicions about the use of obesity treatment drugs were raised by some, she clarified, "I resist spicy hot pot and tteokbokki, exercise hard, and fight with myself every day to build healthy habits."

"You Quiz on the Block" is scheduled to air on April 1st at 8:45 PM.