EVOLution, tripleS's latest subunit, dropped a new music video teaser for its upcoming album's lead track, "Invincible," on Thursday.

The 30-second-long teaser features the subunit's eight members in a dimly lit school, heading somewhere in a rush, creating a mysterious atmosphere.

tripleS EVOLution is girl group tripleS's latest subunit set to debut next Wednesday with its debut EP "Mujuk," stylized as "⟡." Mujuk means invincible in Korean. Alongside tripleS LOVElution, which debuted on Aug. 17, members of both subunits were selected by their fans in votes just like how most other tripleS subunits were formed.

tripleS EVOLution has eight members: Lee Jiwoo, Kim Chaeyeon, Kim Yooyeon, Soomin, Kim Nakyoung, Kotone, Yeonji and Mayu.

"Mujuk" will feature eight songs, including its title track "Invincible," followed by tracks "⟡" "Rhodanthe," "Heavy Metal Wings," "37.5 Celsius," "Moto Princess," "Oui" and "Enhanced Flower."

tripleS is agency Modhaus's first girl group, unveiled in May 2022. While the group currently has 16 members, it plans to add eight more members. The group has a unique subunit system, where the girl group's fandom WAV selects each subunit's members by votes. The current subunits are Acid Angle from Asia, +(KR)ystal Eyes, Acid Eyes, LOVElution and EVOLution.

To find out more about tripleS, visit Celeb Confirmed!

BY CHO YONG-JUN [cho.yongjun1@joongang.co.kr]