Hasegawa Serina

 (長谷川芹奈), better known by her stage name Serina, is a Japanese singer managed by Watanabe Entertainment and signed to gr8! records label from Sony Music Records. She is a member of the girl group Little Glee Monster.

On December 20, 2020, it was announced that Serina would be taking a break due to health problems and to focus on medical treatment, but would continue to participate in recording music for the group.

On May 31, 2021, it was announced that she had been diagnosed with bipolar disorder and ADHD, and would continue her treatment with rest under the guidance of her doctor, aiming to resume her activities. Starting in June of the same year, she was scheduled to continue her activities with the group on a nationwide tour, however, on December 28, it was announced that the tour's final concerts in January 2022 were cancelled as she had fallen ill and would take a break again.

On January 31, 2022, it was announced that she would go on a long-term hiatus in order to give first priority to her physical recovery. On July 15 in the same year, it was announced that Serina would graduate from Little Glee Monster on July 24, the final day of the group's Little Glee Monster LiveTour 2022 Journey, after being on a leave of absence. She had expressed her desire to leave the group and take on new musical challenges, and assured that she would keep singing and expressing herself, with the goal to return to the entertainment industry in the future.

Profile

 * Name: (長谷川芹奈)
 * Stage Name: Serina (芹奈)
 * Birthday:
 * Birthplace:
 * Zodiac:
 * Member Color:  Blue 

Albums

 * Colorful Monster
 * Joyful Monster
 * juice
 * FLAVA
 * BRIGHT NEW WORLD

Mini Albums

 * Little Glee Monster
 * I Feel The Light
 * Re-union

Singles

 * Houkago High Five
 * Seishun Photograph / Girls be Free!
 * Jinsei ha Ichido Kiri / Gao Gao All Stars
 * Kakikake no Mirai
 * Suki da.
 * Chiisana Koi ga, Owatta
 * My Best Friend
 * Watashirashiku Ikitemitai / Kimi no You ni Naritai
 * Hajimari no Uta
 * Dakara, Hitorijanai
 * Ashita e
 * OVER / Hikaru Kakera
 * Gyutto / CLOSE TO YOU
 * Sekai wa Anata ni Waraikakete Iru
 * Natsu ni Natte Utae
 * ECHO
 * Ashiato
 * Dear My Friend feat. Pentatonix

Video Releases

 * Little Glee Monster Live in Budokan ~Hajimari no Uta~
 * Little Glee Monster Arena Tour 2018 - juice !!!!! - at YOKOHAMA ARENA
 * Little Glee Monster MTV Unplugged
 * Little Glee Monster Live in BUDOKAN 2019~Calling Over!!!!!
 * Little Glee Monster 5th Celebration Tour 2019 ~MONSTER GROOVE PARTY~

Trivia

 * She attended Caless Vocal & Dance School Osaka with fellow group member Karen, and both of them already knew each other before the formation of Little Glee Monster.