2 May – Ahead of their debut, Hello Venus' member Yun-jo suffered an ankle injury, causing the group to now promote with only five members, as reported on Allkpop website.
According to a representative of Pledis Entertainment, "Yun-jo injured her ankle while practicing two days before their music video shoot. She will need at least three to four weeks of rest so for the moment, Hello Venus will start their promotional activity with only five members."
The rep added, "It's not a serious injury but to show a perfect debut stage, we have discussed with Yun-jo on this decision." They stated that although only five members will be performing on stage, all the other activities such as radio and TV interviews will be done with all six members.
Hello Venus will make their debut on 9 May.