Yuuki Yuuna

 (優木ゆうな) is a member of Luce Kenkyuusei, a former founding member of I MY ME MINE as Otomi Yuuna (音海ゆうな), and a former member of Yumekawa Days MONSTER and Marbles as Tsubaki Yuina (椿ゆいな).

She joined Marbles on December 6, 2016 and was a member until the group's disbandment on April 19, 2017.

She joined Yumekawa Days MONSTER (then named Yumekawa Crown TOKYO) in August 2017. She remained a member until their disbandment in February 2021.

She debuted as a founding member of I MY ME MINE on June 16, 2021 and graduated on October 3, 2022.

I MY ME MINE

 * Hobbies: Making accessories, afternoon tea
 * Special skill: Speed reading, flute

Marbles

 * Hobbies: All games, getting tested on mushroom types
 * Skills: Flute, handicrafts

Digital Albums

 * Mikansei na Watashi

Trivia

 * She participated in Spring Tokyo Gravure Idol Festival 2022 Online.