"Yul-hee got caught using her cell phone secretly."In the web entertainment show 「B-class hearing" released on YouTube channel 'Content Production Center on the 4th, Yoo Jeong, Lovelyz Ryu Soo-jung, and Bandit Seung-eun appeared to share their experiences during their idol activities, especially by referring to Yoo Jeong's story related to Yul-hee, who was a teammate.Yoo Jeong talked about prohibiting dating and restricting the use of mobile phones, referring to strict rules during her past La Boom