Haruna Oshima - Koi no Balloon Lyrics | Akkun to Kanojo OP March 09, 2018 Get link Facebook Twitter Pinterest Email Other Apps Haruna Oshima - Koi no Balloon Lyrics | Akkun to Kanojo OP Haruna Oshima - Koi no Balloon Release date: April 29, 2018 TV Anime "Akkun to Kanojo" Opening Theme