 On July 27, 2005 Sadie released their first maxi single, "Kokui no Shita no Yokubou to, Kunou no Hate ni Mita Hyakkei no Yuritachi", limited to 2000 copies that quickly sold out.On December 3, Sadie had their first oneman called "Dekiai ~ As a Sad Matter of Fact ~" in the Osaka Muse Hall in front of 250 people, introducing their new single "Dekiai", which came out a few days later and the single "Oboreru Sakana", exclusive for visitors of their concert.After Sora left the group in January, Sadie was featured on an Omnibus compilation CD called "sawayaka sankumi" with the song "Meisai".