Hakuu Coai

 (白空こあい) is a Japanese idol, a member of Yakousei Amuse, GILTY×GILTY, and HEROINES, a former member and co-producer of PEDIOPHOBIA under the name Coai (こあい), and a former member of Zenbu Kimi no Sei da. under the name Togaren (咎憐无).

She joined Zenbu Kimi no Sei da. in January 2017, and graduated on April 28, 2019, with the announcement that she would retire from showbiz.

On December 14, 2019, she returned to showbiz in the new group PEDIOPHOBIA, where she was a member and co-producer. She was part of the group until its disbandment, on November 13, 2020.

She joined HEROINES on March 17, 2021 when Yakousei Amuse was formed.

She was revealed as a concurrent member of GILTYxGILTY on June 3, 2022.

Zenbu Kimi no Sei da.

 * Weapon: Large Axe
 * A hurting word: Were you there?
 * Favorite things: Backgrounds (especially the sky, clouds, etc.)
 * Hobby / Skill: Gluttony

Yakousei Amuse

 *  Theme: Easter

GILTYxGILTY

 * Hobby / Special Skill: Singing
 * Favorite Food: Kohakuto (Gummy Crystals)

Digital Albums

 * Yakousei Introduce

Digital Singles

 * N.P.C
 * Masshigura Koigokoro
 * Etto Eto Girl
 * Exotic Telepathy
 * Sadistic Sweets
 * Love Melody

EPs

 * PAS DE QUATRE

Albums

 * Egotistic Eat Issues
 * NEORDER NATION

Singles

 * Sophmore Sick Sacrifice
 * Wagamama Shinsei Hominina
 * Sekirarararaiot
 * Tonari Kore Arata
 * Natural Born Independent / Romance Sect

Trivia

 * Her ZenKimi stage name Togaren only comes from the first two kanji, the last kanji 无 has no kun'yomi (Japanese reading of Chinese characters) reading.