Neptune☆Sagashite (ネプテューヌ☆サガして)

"Neptune☆Sagashite (ネプテューヌ☆サガして)" is the first ending theme of the 2013 television anime Hyperdimension Neptunia (超次元ゲイム ネプテューヌ). The song was performed by Afilia Saga, the idol group later known as Junjou no Afilia, for the David Production adaptation. It was released as a single on 28 August 2013, the same year the series aired.

Built as a bright J-Pop number, the song moves with a brisk tempo, sparkling keyboard color, and coordinated group vocals that keep the chorus light and buoyant. Its refrain opens outward rather than hitting with rock weight, giving the ending a cheerful lift that feels playful and neatly polished.

That tone fits a series where Neptune’s relaxed personality sits against struggles over Shares, uneasy alliances, and rivalry between the nations of Gamindustri. The single appeared in multiple editions, including anime tie-in versions for Hyperdimension Neptunia, and it reached No. 9 on Oricon’s weekly singles chart.