Osaka☆Syunkasyuto

 (大阪☆春夏秋冬) is an idol group formed from students of the Happy Time Dance School in Osaka. They were originally formed in 2009, but restarted in their current form in May 2012.

Current Members

 * MAINA (マイナ) - Leader/Main Vocal
 * MANA (マナ) – Chorus/Dance
 * EON (エオン) – Chorus/Dance
 * YUNA (ユウナ) – Chorus/Dance
 * RUNA (ルナ) – Chorus/Dance (Joined November 2014)

Former Members

 * Yano Sayumi
 * Minamiguchi Nana (南口奈々) (Transferred to Avex May 2012)
 * MAYA (マヤ) (Withdrew February 2015)
 * RINA (リナ) (Graduated October 31, 2016)
 * ANNA (アンナ) – Chorus/Dance (Graduated April 25, 2021)

Albums

 * 1) [2018.06.12] SSFW
 * 2) [2020.07.29] BRAVE SOULS

Best Albums

 * 1) [2015.12.22] Early Season

Live Albums

 * 1) [2015.11.24] "Hachi Hachi" Live!!

Mini Albums

 * 1) [2014.12.18] Chameleon Shoujo (カメレオン少女)
 * 2) [2019.07.31] Gachiagaru High Tension Made Yume Janai Kono Genjitsu (ガチ上がるハイテンションまで夢じゃないこの現実)

Singles

 * 1) [2014.07.29] DAWN OF MY LIFETIME
 * 2) [2015.04.15] C’mon!
 * 3) [2015.07.08] BABYCRAZY
 * 4) [2015.08.08] SHINE
 * 5) [2015.10.05] SHINE (Re-release)
 * 6) [2017.01.31] New Me
 * 7) [2017.06.20] Rainbow Color (レインボーカラー)
 * 8) [2017.10.03] Travelin' Travelin'
 * 9) [2017.12.19] SPARK!

Digital Singles

 * 1) [2020.02.16] BABYCRAZY (Re-recording ver.)
 * 2) [2020.02.16] Let you fly (Re-recording ver.)