Sunmi and her sibling struck up a conversation with TWICE's supporters on a YouTube channel, named mu:fully, about the negative remarks the members are suffering from, and how these negatively impact them.

A ONCE named Joo Sung raised his disappointment about the suffering of TWICE members' vile comments and sought advice from Sunmi.

"There was a moment when TWICE was having a tough time due to hurtful comments. Since fans do not fully comprehend how celebrities feel, when they endure insulting comments, we become extremely concerned," he said.

Sunmi responded by drawing on her own knowledge to express how the members must feel.

"Because of this, numerous girl bands have a pretty hard time. They are often not even real and it sometimes feels like online fantasy stories written by people who despise you," she said.

Sunmi went on, "There comes a point when offensive remarks become very difficult to bear. You don't get mad simply because you've seen one message. You continue to read, and hold back offensive remarks. I can assure you that, on thousands of occasions, TWICE kept it until fans saw what it was they were feeling."

Sunmi decided to add that she often monitors TWICE whenever they come back with a new release, and addressed why she was really captivated by their MV for "Feel Special."

"Within the MV they looked so sophisticated, especially when Jihyo came out and sang, 'Even if the world pushes me down,' I bet the fans really felt comfortable given the song lyrics and the emotions being involved in the music," Sunmi added.

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Lee Sunmi is a South Korean musician and songwriter widely known for her stage name, Sunmi. She started her career as a member of the South Korean girl band Wonder Girls in 2007 and parted ways to continue pursuing an academic life in January 2010.

Sunmi revived her profession as a solo artist in August of 2013 after a three-year-long break from the music industry, with her first extended play "Full Moon," which produced the number two hits "24 Hours" and "Full Moon" on South Korea's Gaon Digital List. She also garnered an all-kill status on pop charts.

"Full Moon" was released on February 17, 2014. It has been recognized for being creative, and Sunmi has been said to produce a sophisticated "sexy" version.

Sunmi was announced in 2015 that she would resume promotional activities with the Wonder Girls until their 2017 disbandment. She then decided to leave JYP Entertainment and became part of Makeus Entertainment. Her second extended play "Warning" was launched in 2018, producing "Gashina," "Heroine," and "Siren."