Imoutozaka

Imoutozaka (いもうと坂) is a special Nogizaka46 unit created for the song Kotodamaho, a coupling song from Nogizaka46's 20th single Synchronicity.

The unit is composed of the youngest members of the Synchronicity Senbatsu, hence the name "Imouto (いもうと)" meaning "younger sister" in Japanese.