N.Flying is preparing for their ninth mini-album comeback with the release of a new trailer and a delayed album launch to October 8 to ensure quality. The group has also announced a venue change for their Seoul concert, performed on a special 'Immortal Songs' episode honoring Boohwal's Kim Tae Won, and been appointed honorary ambassadors for Korean Tourism. Additionally, they released a mysterious digital single teaser titled 'What Happened to Hun?' ahead of their emotional return after a year-long hiatus.