sora tob sakana is a Japanese idol group formed in 2014. They are also known under the name of Osakana (オサカナ), which can be translated to “fish”. This symbol appears on their logo. The unit currently consists of 4 members. History: sora tob sakana were created in July 2014. The 5 original members were Sato Mio, Teraguchi Natsuka, Konishi Yuiko, Kazamarei Maraika and Kanzaki Fuka. Their average age was 13 years old. Their 1st original song Dash!!!! was released in September 2014. Konishi Yuiko graduated in February 2015, and as a result, Yamazaki Mana joined the idol group as a new member a few days later. sora tob sakana's 1st one-man live was held in July 2015, and Sato Mio announced her graduation. Members: Teraguchi Natsuka (寺口夏花) Kazamarei Maraika (風間玲マライカ) Kanzaki Fuka (神埼風花) Yamazaki Mana (山崎愛) Former Members: Konishi Yuiko (小西結子) Sato Mio (佐藤美緒)