Keikoto Saisei Keikaku

Keikoto Saisei Keikaku (蛍光灯再生計画 lit. Fluorescent Lamp Regeneration Project) is a sub-unit under 22/7. The group originally consisted of 4 members, and currently consists of 5 members, namely Hotaru Ichinose, Nicole Saito, Ayaka Tachikawa, Mizuki Himuno and Akane Maruyama. They are described as the 'Sexy Type' sub-unit.

Their image colour is purple.

Characters

 * Nicole Saito
 * Ayaka Tachikawa
 * Akane Maruyama
 * Hotaru Ichinose (Joined June 19, 2022)
 * Mizuki Himuno (Joined June 19, 2022)

Seiyuu

 * Uta Kawase
 * Reina Miyase
 * Kanae Shirosawa
 * Luna Shijo (Joined June 19, 2022)
 * Emma Tsukishiro (Joined June 19, 2022)

Former Characters

 * Reika Sato (Graduated on December 26, 2021)

Former Seiyuu

 * Chiharu Hokaze (Graduated on February 28, 2021)

2020
From July 1 to July 15, 2020, fans voted between four possible sub-unit formations to be under 22/7. On July 22, it was announced that option 2 had won.

On September 1, the sub-unit's names were revealed on 22/7's 3rd Live Broadcast on Youtube.

On December 23, 2020, it was announced that Chiharu would graduate from 22/7 on February 28, 2021 due to wanting to pursue solely a voice actor carrier.

2021
On February 28, 2021, Chiharu graduated from the group.

On December 26, 2021, it was revealed that Reika had graduated from the group.

2022
On June 19, 2022, the new subunit formations featuring the new members were revealed.

Discography

 * 1) Tattoo Love
 * 2) Koukan Jouken