Welcome, Future World!!!

Welcome, Future World!!! is sung by IDOLiSH7, TRIGGER, and Re:vale's voice actors, Toshiki Masuda as Iori Izumi, Yusuke Shirai  as Yamato Nikaido, Tsubasa Yonaga  as Mitsuki Izumi, KENN  as Tamaki Yotsuba, Atsushi Abe  as Sogo Osaka, Takuya Eguchi  as Nagi Rokuya, Kensho Ono  as Riku Nanase, Wataru Hatano  as Gaku Yaotome, Soma Saito  as Tenn Kujo, Takuya Sato  as Ryunosuke Tsunashi, Soichiro Hoshi  as Momo, and Shinnosuke Tachibana  as Yuki. The song lyrics were written by, and the song was composed by.

Welcome, Future World!!! was originally featured within the game IDOLiSH7 Twelve Fantasia!, and was available as a pre-order bonus with the game. Shorter versions of the song were released on July 7, 2018 on the Welcome, Future World!!! Single, with arrangements focusing on each member of IDOLiSH7, TRIGGER, and Re:vale.

Welcome, Future World!!! was added to the game on July 20, 2019, and becomes available in normal lives after clearing Part 1 Chapter 1.6. Before its full release within the game, it was available during select events.