"Strong sisters." They really stick together. "Return Expedition" by Lee Hyo-ri and four others.

First meeting today, full-scale activities.

Lee Hyo-ri, who dominated the summer music market with mixed group Sot-ri (Yoo Jae-seok, Lee Hyo-ri, Rain), will run the girl group project "Refund Expedition" with female singers Uhm Jung-hwa, Jessie and Hwasa of Mamamoo. They will hold their first meeting on July 31 and make a full-fledged meeting.

The refund expedition, which includes Lee Hyo-ri and Uhm Jung-hwa, collected the sprouts of MBC entertainment show "What's the point of playing?It started with ' In a broadcast on the 20th of last month, Lee listened to the song "Ah You Ready," a song by a composer who made a number of girl group songs in the process of choosing Ssok-Suri's debut song, and said, "I will gather my girlfriends and do it. Jessie, Jeonghwa, and I. Go to Hwasa," referring to them. Afterwards, Uhm Jung-hwa responded via SNS, "Compliment this combination. I can prepare for it." Jesse and Hwa-sa also responded positively, saying, "Can I prepare for it?" "I have to work hard as the youngest."

Lee said, "What do you do when you play?During the recording, he proposed a combination of so-called "Strong Sister." Based on strong images such as Uhm Jung-hwa, who enjoyed the 1990s, Jessie and Hwasa, who have been in the spotlight recently, the group has formed members who show off their girl crush charms. Netizens who watched the broadcast said, "If they go to protest together, I think any store will refund it," and named it "Refund Expedition."

What's the point of playing?It is known that Yoo Jae-seok, the main character of "The Return Expeditionary Force, will be the manager of another minor character. The production team announced the start of the refund expedition by throwing a "with Yoo" (with Yoo Jae-seok) "with a banner reading "We accept the money" at the production site of Ssok-ri's music video, which was released on the 25th.

"Lee Hyo-ri, Uhm Jung-hwa, Jessi, and Hwasa will hold their first meeting on the refund expedition on the 31st," an MBC official said. "We will announce future plans later."