Tsuki, a member of Mystic Story's new girl group Billlie, garners much attention.

Recently, one YouTube channel, 'Girl Group Algorithm,' posted a short video titled 'Billlie's Tsuki changes her facial expression 50,000 times within 52 seconds.' The video was from the girl group's stage performance of 'GingaMingayo' from back on February 25. All the members of Billlie radiated their own charms, but Tsuki stole the stage and gathered all eyes on her with her dynamic facial expression.

Tsuki impressed and mesmerized fans and even netizens who watched the video for the first time with her facial expression that changed every few seconds.

Netizens commented, "Her facial expression really changes every few seconds," "She's so good with her facial expression," "Her facial expression draws me in so much lol," and "She's so talented."

Meanwhile, Billlie's second mini-album, 'the collective soul and unconscious: chapter one,' broke the group's own record of 28,000 copies sold in the first week.