Sekai de Ichiban Kanashii Audition.

A behind-the-scenes documentary of WACK's 2018 audition camp: - Takes place in March 2018 on Iki Island (remote island in Nagasaki Prefecture, ~1 hour by ferry from Fukuoka). - Features 24 aspiring idol candidates striving to join WACK’s groups: BiSH, BiS, GANG PARADE, and EMPiRE. - Participants endure grueling challenges: singing, dancing, marathons, squats, even “life game” style tests. Their lives are documented round-the-clock. - Each night, emotional eliminations reveal raw vulnerability and heartbreak as dreams clash with reality.