Moa Kikuchi was signed to the talent agency Amuse Inc. at the age of 8, after winning Semi-Grand Prix (becoming a runner-up) in the Ciao Girl Audition 2007 held by the company.

[1][3] During their audition, Kikuchi and Mizuno performed a duo dance cover of "Over The Future" by Karen Girl's; two members of that group, Ayami Mutō and Suzuka Nakamoto, had also recently joined Sakura Gakuin.

Kikuchi is an idol otaku, which was notably mentioned as part of her introduction in the Sakura Gakuin song "Mezase!

[11] In interviews, she has also mentioned Bring Me the Horizon,[12] Limp Bizkit,[13] Måneskin,[14] and Metallica as her favorite bands.

In her spare time, Kikuchi also likes to watch anime,[9] and her favorite show is Love Live!, which is a series about idols.