 And then, in October 2002, their first full album "Delta Force" released on the Indie Label.On October 2007, they signed with a major label, DefSTAR Records, and released their first major single, "Distance", in January 2008, which was used as the second opening theme for the anime series Naruto Shippuden.Their single "Ano Hi Time Machine" was an opening theme of the anime television series "Zoku Natsume Yūjinchō".