- Takumi - Vocal & Guitar
- Heisei no Mao (平成のまお) - Vocal & Bass
- Mikke (みっけ) - Vocal & Drums
- Taiki Roido (タイキロイド) - Guitar & Chorus
Swimy was formed in the Shiga Prefecture in May 2011 and they started activities in the Kansai region. In August, three months after their formation, they released their first demo "Moshimo". The demo ranked 11 consecutive days on the indies top 10 and placed fifth in the weekly rankings. Their second demo "Aquarium" was released in February 2012 followed by their third demo "Boku to Kimi" in August. That September they performed a tour that consisted of 14 locations. In August 2013, their fourth demo "Triangle" was released.
In March 2015 they signed with Tower Records' new label FIRE STARTER and released the limited single "Mascot ni Aritakute". In June they released their first nationally distributed limited album Raburu to Uchuu.
- [2015.06.03] Raburu to Uchuu (ラブルと宇宙; Trouble and the Universe) (Indies)
- [2016.06.29] Ohitorisama (おひとりさま; One Person)
- [2017.02.22] Zetsu Zetsu ep (絶絶; Absolutely)
- [2015.03.04] Mascot ni Aritakute (マスコットになりたくて; I Wanted to Become a Mascot) (Indies)
- [2016.03.02] Acchi Muite (あっちむいて; Look That Way)
- [2011.08.xx] Moshimo (もしも; If)
- [2012.02.24] Aquarium (アクアリウム)
- [2012.08.19] Boku to Kimi (僕とキミ; You and I)
- [2013.08.30] Triangle (とらいあんぐる)