ONLY ONCE, ONLY 7TH. was the sixth live by the IDOLiSH7 franchise, held at the Yoyogi National Gymnasium. It was a celebration of the franchise's seventh anniversary and it marked a special milestone as the number "7" is very a significant number within IDOLiSH7. The theme was "parade".
Toshiki MasudaIori Izumi
Yusuke ShiraiYamato Nikaido
Tsubasa YonagaMitsuki Izumi
KENNTamaki Yotsuba
Atsushi AbeSogo Osaka
Takuya EguchiNagi Rokuya
Kensho OnoKensho Ono
Wataru HatanoGaku Yaotome
Soma SaitoTenn Kujo
Takuya SatoRyunosuke Tsunashi
Soichiro HoshiMomo
Shinnosuke TachibanaYuki
Yuya HiroseHaruka Isumi
Subaru KimuraToma Inumaru
Koutaro NishiyamaMinami Natsume
