Digital Idol 25

"'Wasn't 22/7 supposed to have a 12th member?'... Yeah, but we never discuss that...We're just not gonna discuss that. I don't even know what happened." Digital Idol 25, nicknamed Nikochan (ニコちゃん), was a member of 22/7. After making it past the final audition on December 25, 2016, she was tentatively cast as Ayaka Tachikawa.

Nikochan can be seen in between Aina and Reina with her face blurred in the Documentary of 22/7 during the announcement of the final lineup.

Nikochan placed 5th during the December 22 SHOWROOM rankings. Prior to the name assignment SHOWROOM streams, she was suddenly no longer a member of the group. No explanation was given.