In the teaser, member Yong Jun Hyung was seen lying on the ground where Son Naeun, dressed in red, put on an oxygen mask for him and gains conscience.
Dalam teaser tersebut, anggota Yong Jun Hyung terlihat berbaring di tanah di mana Son Naeun, berbaju merah, mengenakan sebuah masker oksigen untuk dia dan hati nurani.