Kasen

 (カセン) is an original member of tonalia, a former member of RILISREVERSE, and a former member of NECRONOMIDOL, PEEK-A-BOO!!!, and Kimi Dokusen Ryouiki (the latter 3 As Kozakura Malin; 小桜麻鈴).

She joined Kimi Dokusen Ryouiki as a trainee on April 21, 2020, but the group disbanded on May 31, 2020 before she could debut with them. She then joined PEEK-A-BOO!!!, a self-produced unit made by former members of Kimi Doku, and withdrew from it on March 5, 2021.

She joined NECRONOMIDOL on April 25, 2021 and withdrew from it on August 30, 2022, when the group entered an indefinite hiatus.

She joined RILISREVERSE on November 16, 2022.

Profile

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 * Skills: Falling asleep quickly anywhere
 * Hobbies: Eating a lot of rice, music, long baths.

Limited CDs

 * cursebreaker EP
 * l'appel du vide

Mini Albums

 * TALES

Digital Singles

 * Kiseki

Trivia

 * Her introduction while in NECRONOMIDOL was: "Imouto mitai jya dame desu ka? Minna no Vitamin C, Kozakura Malin desu!" (妹みたいじゃ駄目ですか? みんなのビタミンC、小桜麻鈴です！)