Seino Sayumi

 (星乃さゆみ) is a founding member of AIBECK and a former member of Otome Rouman.

She joined Otome Rouman in August 2016 and graduated on February 26, 2017.

Profile

 * Likes: Yu-Gi-Oh!, Queen, cute things
 * Interests: Karaoke, watching Let's Plays
 * Skills: Rubik's cube
 * Goals: One-man at Budokan!!!

Albums

 * IDOL COUNTER ATTACK

Best Albums

 * AIBECK THE BEST

Singles

 * Wake Up
 * FLASH BACK
 * CHEKILLER
 * Super Nova
 * HELLO
 * AISola

Digital Singles

 * STAY GOLD
 * ShowCase
 * AISola
 * Kimisorairo
 * Anthem
 * OSE!!
 * CHEKILLER
 * NEXT STEP
 * HELLO
 * Super Nova
 * Hallelujah
 * FLASH BACK
 * Wake up
 * LAKE MAD GO
 * PERFECT VISION
 * ITO
 * STEPPER
 * Airenshoku
 * OLEOLEO
 * WANTED
 * Hi-HO
 * EggmaN
 * Mugen STEPPER
 * Pink Chain

Collaboration Singles

 * Seitansai (Tracks 1 and 3)

Video Releases

 * IDOL COUNTER ATTACK 1st ONEMAN LIVE 2017/12/21 Zirco Tokyo
 * AIBECK 3rd one-man LIVE 2018.12.19 @RADHALL
 * AIBECK 2nd one-man LIVE 2021.12.20 @Shinjuku BLAZE "Shogeki no Ketsumatsu"
 * AIBECK ZEPP HANEDA 3rd ONEMAN LIVE DVD

Trivia

 * Her fans are called Sayumists (さゆみすと).