Kiyohara Rio

 (清原梨央) is a former 1st Generation member of Last Idol and its unit, Someday Somewhere. She announced her graduation from the group on September 19, 2019 and graduated on December 3, of the same year.

Trivia

 * She is signed to Twin Planet as an artist.
 * She specialises in korean and intimidation.
 * She has a good memory.
 * She is a fan of many Korean Pop girl groups such as TWICE and Blackpink to name a few.
 * She was considered one of the group's aces and was one of the most popular members.
 * She played 'Naoki Miki' in the live action adaptation of 'Gakkou Gurashi' alongside Last Idol members, Abe Nanami, Majima Wakana and Nagatsuki Midori.

(A-side)

 * Suki de Suki de Shouganai (好きで好きでしょうがない) (Center)
 * Otona Survivor (大人サバイバー)
 * Seishun Train (青春トレイン)

(B-side/Coupling)

 * Bandwagon (バンドワゴン) / Again & Again
 * Kimi no Achoo! (君のAchoo!) / Kono Koi wa Transit (この恋はトランジット)
 * Everything will be all right / Itsuka no Hi ka Doko ka de (いつの日かどこかで)
 * Ai shika buki ga nai (愛しか武器がない) / Madobe de Utaitai (窓辺で歌いたい)