"Overfly" is the second single released by Haruna Luna. It was released in three versions, a limited CD+BD edition, a regular CD Only edition and a limited CD+DVD anime edition only sold until end of December 2012. The title track was used as the second ending theme song for the anime Sword Art Online. The single reached #7 on Oricon charts, and charted for 10 weeks, User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.