AKMU member Lee Suhyun revealed the recovery process she went through with her older brother Lee Chanhyuk. On the 19th, a video titled "AKMU: THE PAST YEAR" was uploaded to AKMU's official YouTube channel. In the video, Lee Chanhyuk shared his thoughts on the direction of the team, saying, "Since right after the 'Sailing' album, we have been saying for several years, 'We need to separate now.'" He added, "I thought that when people think of AKMU, each individual should have their own image for the group to last longer."

Lee Suhyun explained, "I encountered a tremendous whirlwind in life," and said, "It feels like I am cleaning up the remaining messy debris." Lee Chanhyuk mentioned Suhyun's decision to pause her music activities, saying, "Suhyun was planning to do something like that, but suddenly said she wouldn't do music anymore."

The video also showed Suhyun's exercise routine for weight loss. She worked out outdoors with a trainer and complained, "Life is tough." Suhyun revealed, "I thought this looked like physical training, but the mental training was even greater." Lee Chanhyuk sent a heartfelt message to Suhyun, saying, "With this training camp, you've come right before discovering a small hope."

The two spent three weeks in a training camp, encouraging each other. Lee Chanhyuk said, "I sigh day and night because of Suhyun's worries," wishing for her health. Lee Suhyun expressed gratitude to Chanhyuk, saying, "I realized that health and happiness don't come by themselves."

Lee Suhyun also addressed suspicions related to her diet. She emphasized, "I did not use any appetite suppressants. It's very unfair," and added, "I resisted spicy hot pot and spicy rice cakes, exercised hard, and fight with myself every day to build healthy habits." She further stated, "I am managing myself properly for a sustainable healthy life."

Lee Suhyun and Lee Chanhyuk currently live together. It attracted attention when it was revealed that after living independently for a while, they started living together again. The video showed the two pushing each other through a time of change. Netizens responded positively to Suhyun's diet process and the sibling chemistry. Comments included, "This is truly the result of hard work," and "It's understandable to feel unfair."

AKMU plans to continue communicating with fans through various activities. The recovery process of Lee Suhyun and Lee Chanhyuk is delivering a positive message to many people.