Lee Suhyun revealed the process of her successful diet. On the 13th, a video titled "AKMU Coach? Diet Secrets?| Unrequested Q&A with AKMU Suhyun Princess by Meong Coach" was uploaded on the YouTube channel 'Meong Coach.'

In the video, coach Hwang Myungkyu answered diet-related questions based on his experience managing exercise and diet with AKMU members. Coach Hwang explained the method to reduce food cravings, saying, "If you just tell someone to endure it, they will inevitably eat dangerous foods secretly. To block that, it's better to have them eat slightly better foods." He also recommended foods like vegetables, saying, "Make them eat foods with low nutritional density until they feel full." He added, "Chocolate, for example, is small but very high in calories. It has a very high density. But vegetables have low density, so even if you eat a lot, most of it is excreted and little is absorbed."

Lee Suhyun also mentioned, "Isn't that the method we sometimes use? Eating a lot of steamed vegetables." Coach Hwang said, "Even then, Suhyun ate less than now, but she didn't have stomach pain caused by stomach acid. Because she ate steamed vegetables, she could endure hunger. I recommend eating steamed vegetables or salads."

Coach Hwang said he also helped Lee Suhyun during the period when she suffered from binge eating due to a slump. He said, "When I first met Suhyun, she was different from who she is now. At that time, she was following Chanhyuk's lead without motivation. She seemed timid." Lee Suhyun said, "I lacked confidence," and Coach Hwang said, "I had confidence. I thought I had to devote all my effort to changing this person's life."

Coach Hwang also revealed that he accompanied AKMU on various schedules such as their trip to Jeju Island and the Santiago pilgrimage. Recalling when she first met Coach Hwang, Lee Suhyun said, "The biggest support I got was when I first met the coach. I was lifeless and lacked willpower, but the way he looked at me was so lively. His eyes were sparkling and full of conviction that 'I have to change this person's life,' always directed at me. Even though I didn't have much willpower, if this person has such strong will, maybe I can rely on him and accomplish something."

Meanwhile, Coach Hwang expressed his intention to continue the exercise vlogs with AKMU in the future. He said, "If Suhyun wants to do this, I am always honored. I am always open. We can't help it. We have become like family. We will continue on."