Русская рулетка
On February 2, a teaser video of the music video of "Russian Roulette" was released on B2M Entertainment's YouTube account. The music video was released one week after, on February 8, same day of mini-album's release. In the music video, the girls are playing Russian roulette on a table with one lighted candle under. The girls also perform the song in 3 different studios. In the end, the member Juhyun got shot by the revolver and the candle under the table was cleared.