Yamaguchi Ayuka

 (山口愛悠伽) is a Japanese idol, model, and a former founding member and leader of Marble Angel.

She graduated from the group on April 19, 2020, and continued as a solo idol.

She became a founding member of anomaly on April 6, 2022.

Profile

 * Hobbies: Singing and making sweets.
 * Skills: Playing the drums.

Singles

 * Smile / Hekotarenaideite

Unreleased Songs

 * Natsu no Ojousan
 * Toshishita no Otokonoko
 * Gakuen Tengoku