On April 2, 2017, WACK held its first annual audition camp, WACK Audition Camp 2017 concluded with four successful participants joining WACK. Hirano Nozomu and Ooshouji Megumi, later known as Momoland and Pan Luna Leafy joined Bis, while Gamiya Saki and Momoko Gumi Inc., later known as Yuka Empire and Yu-ki Empire, joined the line-up for a collaborative group between WACK and Avex with the temporary name Project AW. It was also announced that Aya Eightprince of Bis and Kamiya Saki of Gang Parade would temporarily swap groups for six months from May 1 in what was coined a "rental trade".
