The group's name and concept was first revealed on a teaser site on July 19, 2013, before the original lineup of members,
Anna (Sawai), Diane, Tina, Mikako, and Lil'Fang, was officially revealed on July 22. Their first music video "Better Without You" was released on July 29, 2013. In June 2014, the group announced that they would be on hiatus. Their first album
The One was released through
iTunes on July 2, 2014. In October 2015, the group returned from being on hiatus for more than a year. During this time, Akina joined the group while Diane and Tina left. She performed as a member for the last time at Faky's headline tour,
fo(u)r, on December 20. On the same day, Faky announced that they added two new members, Hina and
Taki, and would continue as a five-member group. On November 27, 2020, member Akina made her solo debut with the single "Touch". On November 19, 2023, it was announced that the group would be suspending their activities following a last concert on January 13, 2024 at
KT Zepp Yokohama. It was also revealed that, after the suspension, members Lil' Fang and Mikako would be departing from the group while the remaining members would focus on individual activities. On July 30, 2024, members Akina, Taki and Hina posted to their Instagram accounts that the group had disbanded. No reason was given. The following day, Akina announced on her Instagram that she had left Rhythm Zone. ==Members==