Nina

Nina (にーな, niina) is a nickname used for 22/7's managers.

The nickname comes from the name 22/7: にーな is a stylized reading of 227 (ni ni nana ~> ni~na).

There are currently two known "Ninas," a "Cool Nina" and a "Cute Nina," each with different roles. Sally loves both Ninas.

The Free Email Magazine has a portion that is called the "Nina Shinbun" in which a Nina publishes behind-the-scenes stories. Both known Ninas appear in portions of the Documentary of 22/7.

On July 31, 2019, it was announced that one of the Ninas was retiring and leaving 22/7, as well as the position of manager, although it is unclear which one.

"Cute Nina"
Sally thinks Cute Nina has a nice clear voice and is pretty enough to be an idol.

According to Sally, she looks like Haruna Kawaguchi.

"Cool Nina"
Cool Nina worked during the Anime Japan event and was seen near the members while wearing a biker jacket.

She was seen managing Mei, Reina, and Sally at the Anime Expo 2018 event.